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提交 dd1845af 编写于 作者: L Linus Torvalds
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Merge tag 'clk-for-linus-3.16-part2' of git://git.linaro.org/people/mike.turquette/linux 

Pull more clock framework updates from Mike Turquette:
 "This contains the second half the of the clk changes for 3.16.

  They are simply fixes and code refactoring for the OMAP clock drivers.
  The sunxi clock driver changes include splitting out the one
  mega-driver into several smaller pieces and adding support for the A31
  SoC clocks"

* tag 'clk-for-linus-3.16-part2' of git://git.linaro.org/people/mike.turquette/linux: (25 commits)
  clk: sunxi: document PRCM clock compatible strings
  clk: sunxi: add PRCM (Power/Reset/Clock Management) clks support
  clk: sun6i: Protect SDRAM gating bit
  clk: sun6i: Protect CPU clock
  clk: sunxi: Rework clock protection code
  clk: sunxi: Move the GMAC clock to a file of its own
  clk: sunxi: Move the 24M oscillator to a file of its own
  clk: sunxi: Remove calls to clk_put
  clk: sunxi: document new A31 USB clock compatible
  clk: sunxi: Implement A31 USB clock
  ARM: dts: OMAP5/DRA7: use omap5-mpu-dpll-clock capable of dealing with higher frequencies
  CLK: TI: dpll: support OMAP5 MPU DPLL that need special handling for higher frequencies
  ARM: OMAP5+: dpll: support Duty Cycle Correction(DCC)
  CLK: TI: clk-54xx: Set the rate for dpll_abe_m2x2_ck
  CLK: TI: Driver for DRA7 ATL (Audio Tracking Logic)
  dt:/bindings: DRA7 ATL (Audio Tracking Logic) clock bindings
  ARM: dts: dra7xx-clocks: Correct name for atl clkin3 clock
  CLK: TI: gate: add composite interface clock to OMAP2 only build
  ARM: OMAP2: clock: add DT boot support for cpufreq_ck
  CLK: TI: OMAP2: add clock init support
  ...
上级 b55b3902 b640a603
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Documentation/devicetree/bindings/clock/sunxi.txt
浏览文件 @ dd1845af
...@@ -20,12 +20,15 @@ Required properties: ...@@ -20,12 +20,15 @@ Required properties:
"allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13 "allwinner,sun5i-a13-ahb-gates-clk" - for the AHB gates on A13
"allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s "allwinner,sun5i-a10s-ahb-gates-clk" - for the AHB gates on A10s
"allwinner,sun7i-a20-ahb-gates-clk" - for the AHB gates on A20 "allwinner,sun7i-a20-ahb-gates-clk" - for the AHB gates on A20
"allwinner,sun6i-a31-ar100-clk" - for the AR100 on A31
"allwinner,sun6i-a31-ahb1-mux-clk" - for the AHB1 multiplexer on A31 "allwinner,sun6i-a31-ahb1-mux-clk" - for the AHB1 multiplexer on A31
"allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31 "allwinner,sun6i-a31-ahb1-gates-clk" - for the AHB1 gates on A31
"allwinner,sun4i-a10-apb0-clk" - for the APB0 clock "allwinner,sun4i-a10-apb0-clk" - for the APB0 clock
"allwinner,sun6i-a31-apb0-clk" - for the APB0 clock on A31
"allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10 "allwinner,sun4i-a10-apb0-gates-clk" - for the APB0 gates on A10
"allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13 "allwinner,sun5i-a13-apb0-gates-clk" - for the APB0 gates on A13
"allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s "allwinner,sun5i-a10s-apb0-gates-clk" - for the APB0 gates on A10s
"allwinner,sun6i-a31-apb0-gates-clk" - for the APB0 gates on A31
"allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20 "allwinner,sun7i-a20-apb0-gates-clk" - for the APB0 gates on A20
"allwinner,sun4i-a10-apb1-clk" - for the APB1 clock "allwinner,sun4i-a10-apb1-clk" - for the APB1 clock
"allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing "allwinner,sun4i-a10-apb1-mux-clk" - for the APB1 clock muxing
...@@ -41,6 +44,7 @@ Required properties: ...@@ -41,6 +44,7 @@ Required properties:
"allwinner,sun7i-a20-gmac-clk" - for the GMAC clock module on A20/A31 "allwinner,sun7i-a20-gmac-clk" - for the GMAC clock module on A20/A31
"allwinner,sun4i-a10-usb-clk" - for usb gates + resets on A10 / A20 "allwinner,sun4i-a10-usb-clk" - for usb gates + resets on A10 / A20
"allwinner,sun5i-a13-usb-clk" - for usb gates + resets on A13 "allwinner,sun5i-a13-usb-clk" - for usb gates + resets on A13
"allwinner,sun6i-a31-usb-clk" - for usb gates + resets on A31
Required properties for all clocks: Required properties for all clocks:
- reg : shall be the control register address for the clock. - reg : shall be the control register address for the clock.
......
Documentation/devicetree/bindings/clock/ti/apll.txt
浏览文件 @ dd1845af
...@@ -14,18 +14,32 @@ a subtype of a DPLL [2], although a simplified one at that. ...@@ -14,18 +14,32 @@ a subtype of a DPLL [2], although a simplified one at that.
[2] Documentation/devicetree/bindings/clock/ti/dpll.txt [2] Documentation/devicetree/bindings/clock/ti/dpll.txt
Required properties: Required properties:
- compatible : shall be "ti,dra7-apll-clock" - compatible : shall be "ti,dra7-apll-clock" or "ti,omap2-apll-clock"
- #clock-cells : from common clock binding; shall be set to 0. - #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles of parent clocks (clk-ref and clk-bypass) - clocks : link phandles of parent clocks (clk-ref and clk-bypass)
- reg : address and length of the register set for controlling the APLL. - reg : address and length of the register set for controlling the APLL.
It contains the information of registers in the following order: It contains the information of registers in the following order:
"control" - contains the control register base address "control" - contains the control register offset
"idlest" - contains the idlest register base address "idlest" - contains the idlest register offset
"autoidle" - contains the autoidle register offset (OMAP2 only)
- ti,clock-frequency : static clock frequency for the clock (OMAP2 only)
- ti,idlest-shift : bit-shift for the idlest field (OMAP2 only)
- ti,bit-shift : bit-shift for enable and autoidle fields (OMAP2 only)
Examples: Examples:
apll_pcie_ck: apll_pcie_ck@4a008200 { apll_pcie_ck: apll_pcie_ck {
#clock-cells = <0>; #clock-cells = <0>;
clocks = <&apll_pcie_in_clk_mux>, <&dpll_pcie_ref_ck>; clocks = <&apll_pcie_in_clk_mux>, <&dpll_pcie_ref_ck>;
reg = <0x4a00821c 0x4>, <0x4a008220 0x4>; reg = <0x021c>, <0x0220>;
compatible = "ti,dra7-apll-clock"; compatible = "ti,dra7-apll-clock";
}; };
apll96_ck: apll96_ck {
#clock-cells = <0>;
compatible = "ti,omap2-apll-clock";
clocks = <&sys_ck>;
ti,bit-shift = <2>;
ti,idlest-shift = <8>;
ti,clock-frequency = <96000000>;
reg = <0x0500>, <0x0530>, <0x0520>;
};
Documentation/devicetree/bindings/clock/ti/dpll.txt
浏览文件 @ dd1845af
...@@ -24,12 +24,14 @@ Required properties: ...@@ -24,12 +24,14 @@ Required properties:
"ti,omap4-dpll-core-clock", "ti,omap4-dpll-core-clock",
"ti,omap4-dpll-m4xen-clock", "ti,omap4-dpll-m4xen-clock",
"ti,omap4-dpll-j-type-clock", "ti,omap4-dpll-j-type-clock",
"ti,omap5-mpu-dpll-clock",
"ti,am3-dpll-no-gate-clock", "ti,am3-dpll-no-gate-clock",
"ti,am3-dpll-j-type-clock", "ti,am3-dpll-j-type-clock",
"ti,am3-dpll-no-gate-j-type-clock", "ti,am3-dpll-no-gate-j-type-clock",
"ti,am3-dpll-clock", "ti,am3-dpll-clock",
"ti,am3-dpll-core-clock", "ti,am3-dpll-core-clock",
"ti,am3-dpll-x2-clock", "ti,am3-dpll-x2-clock",
"ti,omap2-dpll-core-clock",
- #clock-cells : from common clock binding; shall be set to 0. - #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles of parent clocks, first entry lists reference clock - clocks : link phandles of parent clocks, first entry lists reference clock
...@@ -41,6 +43,7 @@ Required properties: ...@@ -41,6 +43,7 @@ Required properties:
"mult-div1" - contains the multiplier / divider register base address "mult-div1" - contains the multiplier / divider register base address
"autoidle" - contains the autoidle register base address (optional) "autoidle" - contains the autoidle register base address (optional)
ti,am3-* dpll types do not have autoidle register ti,am3-* dpll types do not have autoidle register
ti,omap2-* dpll type does not support idlest / autoidle registers
Optional properties: Optional properties:
- DPLL mode setting - defining any one or more of the following overrides - DPLL mode setting - defining any one or more of the following overrides
...@@ -73,3 +76,10 @@ Examples: ...@@ -73,3 +76,10 @@ Examples:
clocks = <&sys_clkin_ck>, <&sys_clkin_ck>; clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
reg = <0x90>, <0x5c>, <0x68>; reg = <0x90>, <0x5c>, <0x68>;
}; };
dpll_ck: dpll_ck {
#clock-cells = <0>;
compatible = "ti,omap2-dpll-core-clock";
clocks = <&sys_ck>, <&sys_ck>;
reg = <0x0500>, <0x0540>;
};
Documentation/devicetree/bindings/clock/ti/dra7-atl.txt 0 → 100644
浏览文件 @ dd1845af
Device Tree Clock bindings for ATL (Audio Tracking Logic) of DRA7 SoC.
The ATL IP is used to generate clock to be used to synchronize baseband and
audio codec. A single ATL IP provides four ATL clock instances sharing the same
functional clock but can be configured to provide different clocks.
ATL can maintain a clock averages to some desired frequency based on the bws/aws
signals - can compensate the drift between the two ws signal.
In order to provide the support for ATL and it's output clocks (which can be used
internally within the SoC or external components) two sets of bindings is needed:
Clock tree binding:
This binding uses the common clock binding[1].
To be able to integrate the ATL clocks with DT clock tree.
Provides ccf level representation of the ATL clocks to be used by drivers.
Since the clock instances are part of a single IP this binding is used as a node
for the DT clock tree, the IP driver is needed to handle the actual configuration
of the IP.
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
Required properties:
- compatible : shall be "ti,dra7-atl-clock"
- #clock-cells : from common clock binding; shall be set to 0.
- clocks : link phandles to functional clock of ATL
Binding for the IP driver:
This binding is used to configure the IP driver which is going to handle the
configuration of the IP for the ATL clock instances.
Required properties:
- compatible : shall be "ti,dra7-atl"
- reg : base address for the ATL IP
- ti,provided-clocks : List of phandles to the clocks associated with the ATL
- clocks : link phandles to functional clock of ATL
- clock-names : Shall be set to "fck"
- ti,hwmods : Shall be set to "atl"
Optional properties:
Configuration of ATL instances:
- atl{0/1/2/3} {
- bws : Baseband word select signal selection
- aws : Audio word select signal selection
};
For valid word select signals, see the dt-bindings/clk/ti-dra7-atl.h include
file.
Examples:
/* clock bindings for atl provided clocks */
atl_clkin0_ck: atl_clkin0_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
atl_clkin1_ck: atl_clkin1_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
atl_clkin2_ck: atl_clkin2_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
atl_clkin3_ck: atl_clkin3_ck {
#clock-cells = <0>;
compatible = "ti,dra7-atl-clock";
clocks = <&atl_gfclk_mux>;
};
/* binding for the IP */
atl: atl@4843c000 {
compatible = "ti,dra7-atl";
reg = <0x4843c000 0x3ff>;
ti,hwmods = "atl";
ti,provided-clocks = <&atl_clkin0_ck>, <&atl_clkin1_ck>,
<&atl_clkin2_ck>, <&atl_clkin3_ck>;
clocks = <&atl_gfclk_mux>;
clock-names = "fck";
status = "disabled";
};
#include <dt-bindings/clk/ti-dra7-atl.h>
&atl {
status = "okay";
atl2 {
bws = <DRA7_ATL_WS_MCASP2_FSX>;
aws = <DRA7_ATL_WS_MCASP3_FSX>;
};
};
Documentation/devicetree/bindings/clock/ti/gate.txt
浏览文件 @ dd1845af
...@@ -25,6 +25,11 @@ Required properties: ...@@ -25,6 +25,11 @@ Required properties:
to map clockdomains properly to map clockdomains properly
"ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling, "ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling,
required for a hardware errata required for a hardware errata
"ti,composite-gate-clock" - composite gate clock, to be part of composite
clock
"ti,composite-no-wait-gate-clock" - composite gate clock that does not wait
for clock to be active before returning
from clk_enable()
- #clock-cells : from common clock binding; shall be set to 0 - #clock-cells : from common clock binding; shall be set to 0
- clocks : link to phandle of parent clock - clocks : link to phandle of parent clock
- reg : offset for register controlling adjustable gate, not needed for - reg : offset for register controlling adjustable gate, not needed for
...@@ -41,7 +46,7 @@ Examples: ...@@ -41,7 +46,7 @@ Examples:
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,gate-clock"; compatible = "ti,gate-clock";
clocks = <&core_96m_fck>; clocks = <&core_96m_fck>;
reg = <0x48004a00 0x4>; reg = <0x0a00>;
ti,bit-shift = <25>; ti,bit-shift = <25>;
}; };
...@@ -57,7 +62,7 @@ Examples: ...@@ -57,7 +62,7 @@ Examples:
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,dss-gate-clock"; compatible = "ti,dss-gate-clock";
clocks = <&dpll4_m4x2_ck>; clocks = <&dpll4_m4x2_ck>;
reg = <0x48004e00 0x4>; reg = <0x0e00>;
ti,bit-shift = <0>; ti,bit-shift = <0>;
}; };
...@@ -65,7 +70,7 @@ Examples: ...@@ -65,7 +70,7 @@ Examples:
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,am35xx-gate-clock"; compatible = "ti,am35xx-gate-clock";
clocks = <&ipss_ick>; clocks = <&ipss_ick>;
reg = <0x4800259c 0x4>; reg = <0x059c>;
ti,bit-shift = <1>; ti,bit-shift = <1>;
}; };
...@@ -80,6 +85,22 @@ Examples: ...@@ -80,6 +85,22 @@ Examples:
compatible = "ti,hsdiv-gate-clock"; compatible = "ti,hsdiv-gate-clock";
clocks = <&dpll4_m2x2_mul_ck>; clocks = <&dpll4_m2x2_mul_ck>;
ti,bit-shift = <0x1b>; ti,bit-shift = <0x1b>;
reg = <0x48004d00 0x4>; reg = <0x0d00>;
ti,set-bit-to-disable; ti,set-bit-to-disable;
}; };
vlynq_gate_fck: vlynq_gate_fck {
#clock-cells = <0>;
compatible = "ti,composite-gate-clock";
clocks = <&core_ck>;
ti,bit-shift = <3>;
reg = <0x0200>;
};
sys_clkout2_src_gate: sys_clkout2_src_gate {
#clock-cells = <0>;
compatible = "ti,composite-no-wait-gate-clock";
clocks = <&core_ck>;
ti,bit-shift = <15>;
reg = <0x0070>;
};
Documentation/devicetree/bindings/clock/ti/interface.txt
浏览文件 @ dd1845af
...@@ -21,6 +21,8 @@ Required properties: ...@@ -21,6 +21,8 @@ Required properties:
"ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling "ti,omap3-dss-interface-clock" - interface clock with DSS specific HW handling
"ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling "ti,omap3-ssi-interface-clock" - interface clock with SSI specific HW handling
"ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling "ti,am35xx-interface-clock" - interface clock with AM35xx specific HW handling
"ti,omap2430-interface-clock" - interface clock with OMAP2430 specific HW
handling
- #clock-cells : from common clock binding; shall be set to 0 - #clock-cells : from common clock binding; shall be set to 0
- clocks : link to phandle of parent clock - clocks : link to phandle of parent clock
- reg : base address for the control register - reg : base address for the control register
......
arch/arm/boot/dts/dra7xx-clocks.dtsi
浏览文件 @ dd1845af
...@@ -26,7 +26,7 @@ ...@@ -26,7 +26,7 @@
clock-frequency = <0>; clock-frequency = <0>;
}; };
atlclkin3_ck: atlclkin3_ck { atl_clkin3_ck: atl_clkin3_ck {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "fixed-clock"; compatible = "fixed-clock";
clock-frequency = <0>; clock-frequency = <0>;
...@@ -277,7 +277,7 @@ ...@@ -277,7 +277,7 @@
dpll_mpu_ck: dpll_mpu_ck { dpll_mpu_ck: dpll_mpu_ck {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,omap4-dpll-clock"; compatible = "ti,omap5-mpu-dpll-clock";
clocks = <&sys_clkin1>, <&mpu_dpll_hs_clk_div>; clocks = <&sys_clkin1>, <&mpu_dpll_hs_clk_div>;
reg = <0x0160>, <0x0164>, <0x016c>, <0x0168>; reg = <0x0160>, <0x0164>, <0x016c>, <0x0168>;
}; };
...@@ -730,7 +730,7 @@ ...@@ -730,7 +730,7 @@
mcasp1_ahclkr_mux: mcasp1_ahclkr_mux { mcasp1_ahclkr_mux: mcasp1_ahclkr_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <28>; ti,bit-shift = <28>;
reg = <0x0550>; reg = <0x0550>;
}; };
...@@ -738,7 +738,7 @@ ...@@ -738,7 +738,7 @@
mcasp1_ahclkx_mux: mcasp1_ahclkx_mux { mcasp1_ahclkx_mux: mcasp1_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x0550>; reg = <0x0550>;
}; };
...@@ -1639,7 +1639,7 @@ ...@@ -1639,7 +1639,7 @@
mcasp2_ahclkr_mux: mcasp2_ahclkr_mux { mcasp2_ahclkr_mux: mcasp2_ahclkr_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <28>; ti,bit-shift = <28>;
reg = <0x1860>; reg = <0x1860>;
}; };
...@@ -1647,7 +1647,7 @@ ...@@ -1647,7 +1647,7 @@
mcasp2_ahclkx_mux: mcasp2_ahclkx_mux { mcasp2_ahclkx_mux: mcasp2_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x1860>; reg = <0x1860>;
}; };
...@@ -1663,7 +1663,7 @@ ...@@ -1663,7 +1663,7 @@
mcasp3_ahclkx_mux: mcasp3_ahclkx_mux { mcasp3_ahclkx_mux: mcasp3_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x1868>; reg = <0x1868>;
}; };
...@@ -1679,7 +1679,7 @@ ...@@ -1679,7 +1679,7 @@
mcasp4_ahclkx_mux: mcasp4_ahclkx_mux { mcasp4_ahclkx_mux: mcasp4_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x1898>; reg = <0x1898>;
}; };
...@@ -1695,7 +1695,7 @@ ...@@ -1695,7 +1695,7 @@
mcasp5_ahclkx_mux: mcasp5_ahclkx_mux { mcasp5_ahclkx_mux: mcasp5_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x1878>; reg = <0x1878>;
}; };
...@@ -1711,7 +1711,7 @@ ...@@ -1711,7 +1711,7 @@
mcasp6_ahclkx_mux: mcasp6_ahclkx_mux { mcasp6_ahclkx_mux: mcasp6_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x1904>; reg = <0x1904>;
}; };
...@@ -1727,7 +1727,7 @@ ...@@ -1727,7 +1727,7 @@
mcasp7_ahclkx_mux: mcasp7_ahclkx_mux { mcasp7_ahclkx_mux: mcasp7_ahclkx_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <24>; ti,bit-shift = <24>;
reg = <0x1908>; reg = <0x1908>;
}; };
...@@ -1743,7 +1743,7 @@ ...@@ -1743,7 +1743,7 @@
mcasp8_ahclk_mux: mcasp8_ahclk_mux { mcasp8_ahclk_mux: mcasp8_ahclk_mux {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,mux-clock"; compatible = "ti,mux-clock";
clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atlclkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>; clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
ti,bit-shift = <22>; ti,bit-shift = <22>;
reg = <0x1890>; reg = <0x1890>;
}; };
......
arch/arm/boot/dts/omap54xx-clocks.dtsi
浏览文件 @ dd1845af
...@@ -335,7 +335,7 @@ ...@@ -335,7 +335,7 @@
dpll_mpu_ck: dpll_mpu_ck { dpll_mpu_ck: dpll_mpu_ck {
#clock-cells = <0>; #clock-cells = <0>;
compatible = "ti,omap4-dpll-clock"; compatible = "ti,omap5-mpu-dpll-clock";
clocks = <&sys_clkin>, <&mpu_dpll_hs_clk_div>; clocks = <&sys_clkin>, <&mpu_dpll_hs_clk_div>;
reg = <0x0160>, <0x0164>, <0x016c>, <0x0168>; reg = <0x0160>, <0x0164>, <0x016c>, <0x0168>;
}; };
......
arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
浏览文件 @ dd1845af
...@@ -208,3 +208,56 @@ void omap2xxx_clkt_vps_late_init(void) ...@@ -208,3 +208,56 @@ void omap2xxx_clkt_vps_late_init(void)
clk_put(c); clk_put(c);
} }
} }
#ifdef CONFIG_OF
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
static const struct clk_ops virt_prcm_set_ops = {
.recalc_rate = &omap2_table_mpu_recalc,
.set_rate = &omap2_select_table_rate,
.round_rate = &omap2_round_to_table_rate,
};
/**
* omap2xxx_clkt_vps_init - initialize virt_prcm_set clock
*
* Does a manual init for the virtual prcm DVFS clock for OMAP2. This
* function is called only from omap2 DT clock init, as the virtual
* node is not modelled in the DT clock data.
*/
void omap2xxx_clkt_vps_init(void)
{
struct clk_init_data init = { NULL };
struct clk_hw_omap *hw = NULL;
struct clk *clk;
const char *parent_name = "mpu_ck";
struct clk_lookup *lookup = NULL;
omap2xxx_clkt_vps_late_init();
omap2xxx_clkt_vps_check_bootloader_rates();
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
lookup = kzalloc(sizeof(*lookup), GFP_KERNEL);
if (!hw || !lookup)
goto cleanup;
init.name = "virt_prcm_set";
init.ops = &virt_prcm_set_ops;
init.parent_names = &parent_name;
init.num_parents = 1;
hw->hw.init = &init;
clk = clk_register(NULL, &hw->hw);
lookup->dev_id = NULL;
lookup->con_id = "cpufreq_ck";
lookup->clk = clk;
clkdev_add(lookup);
return;
cleanup:
kfree(hw);
kfree(lookup);
}
#endif
arch/arm/mach-omap2/clock.h
浏览文件 @ dd1845af
...@@ -178,17 +178,6 @@ struct clksel { ...@@ -178,17 +178,6 @@ struct clksel {
const struct clksel_rate *rates; const struct clksel_rate *rates;
}; };
struct clk_hw_omap_ops {
void (*find_idlest)(struct clk_hw_omap *oclk,
void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
void (*find_companion)(struct clk_hw_omap *oclk,
void __iomem **other_reg,
u8 *other_bit);
void (*allow_idle)(struct clk_hw_omap *oclk);
void (*deny_idle)(struct clk_hw_omap *oclk);
};
unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw, unsigned long omap_fixed_divisor_recalc(struct clk_hw *hw,
unsigned long parent_rate); unsigned long parent_rate);
...@@ -279,8 +268,6 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait; ...@@ -279,8 +268,6 @@ extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait;
extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait; extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait;
extern const struct clk_hw_omap_ops clkhwops_apll54; extern const struct clk_hw_omap_ops clkhwops_apll54;
extern const struct clk_hw_omap_ops clkhwops_apll96; extern const struct clk_hw_omap_ops clkhwops_apll96;
extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
/* clksel_rate blocks shared between OMAP44xx and AM33xx */ /* clksel_rate blocks shared between OMAP44xx and AM33xx */
extern const struct clksel_rate div_1_0_rates[]; extern const struct clksel_rate div_1_0_rates[];
......
arch/arm/mach-omap2/clock2xxx.h
浏览文件 @ dd1845af
...@@ -21,10 +21,6 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk, ...@@ -21,10 +21,6 @@ unsigned long omap2xxx_sys_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate); unsigned long parent_rate);
unsigned long omap2_osc_clk_recalc(struct clk_hw *clk, unsigned long omap2_osc_clk_recalc(struct clk_hw *clk,
unsigned long parent_rate); unsigned long parent_rate);
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate);
int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw); void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw, unsigned long omap2_clk_apll54_recalc(struct clk_hw *hw,
unsigned long parent_rate); unsigned long parent_rate);
......
arch/arm/mach-omap2/dpll3xxx.c
浏览文件 @ dd1845af
...@@ -319,6 +319,15 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel) ...@@ -319,6 +319,15 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel)
/* Set DPLL multiplier, divider */ /* Set DPLL multiplier, divider */
v = omap2_clk_readl(clk, dd->mult_div1_reg); v = omap2_clk_readl(clk, dd->mult_div1_reg);
/* Handle Duty Cycle Correction */
if (dd->dcc_mask) {
if (dd->last_rounded_rate >= dd->dcc_rate)
v |= dd->dcc_mask; /* Enable DCC */
else
v &= ~dd->dcc_mask; /* Disable DCC */
}
v &= ~(dd->mult_mask | dd->div1_mask); v &= ~(dd->mult_mask | dd->div1_mask);
v |= dd->last_rounded_m << __ffs(dd->mult_mask); v |= dd->last_rounded_m << __ffs(dd->mult_mask);
v |= (dd->last_rounded_n - 1) << __ffs(dd->div1_mask); v |= (dd->last_rounded_n - 1) << __ffs(dd->div1_mask);
......
drivers/clk/sunxi/Makefile
浏览文件 @ dd1845af
...@@ -3,3 +3,7 @@ ...@@ -3,3 +3,7 @@
# #
obj-y += clk-sunxi.o clk-factors.o obj-y += clk-sunxi.o clk-factors.o
obj-y += clk-a10-hosc.o
obj-y += clk-a20-gmac.o
obj-$(CONFIG_MFD_SUN6I_PRCM) += clk-sun6i-ar100.o clk-sun6i-apb0.o clk-sun6i-apb0-gates.o
drivers/clk/sunxi/clk-a10-hosc.c 0 → 100644
浏览文件 @ dd1845af
/*
* Copyright 2013 Emilio López
*
* Emilio López <emilio@elopez.com.ar>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/of.h>
#include <linux/of_address.h>
#define SUNXI_OSC24M_GATE 0
static DEFINE_SPINLOCK(hosc_lock);
static void __init sun4i_osc_clk_setup(struct device_node *node)
{
struct clk *clk;
struct clk_fixed_rate *fixed;
struct clk_gate *gate;
const char *clk_name = node->name;
u32 rate;
if (of_property_read_u32(node, "clock-frequency", &rate))
return;
/* allocate fixed-rate and gate clock structs */
fixed = kzalloc(sizeof(struct clk_fixed_rate), GFP_KERNEL);
if (!fixed)
return;
gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
if (!gate)
goto err_free_fixed;
of_property_read_string(node, "clock-output-names", &clk_name);
/* set up gate and fixed rate properties */
gate->reg = of_iomap(node, 0);
gate->bit_idx = SUNXI_OSC24M_GATE;
gate->lock = &hosc_lock;
fixed->fixed_rate = rate;
clk = clk_register_composite(NULL, clk_name,
NULL, 0,
NULL, NULL,
&fixed->hw, &clk_fixed_rate_ops,
&gate->hw, &clk_gate_ops,
CLK_IS_ROOT);
if (IS_ERR(clk))
goto err_free_gate;
of_clk_add_provider(node, of_clk_src_simple_get, clk);
clk_register_clkdev(clk, clk_name, NULL);
return;
err_free_gate:
kfree(gate);
err_free_fixed:
kfree(fixed);
}
CLK_OF_DECLARE(sun4i_osc, "allwinner,sun4i-a10-osc-clk", sun4i_osc_clk_setup);
drivers/clk/sunxi/clk-a20-gmac.c 0 → 100644
浏览文件 @ dd1845af
/*
* Copyright 2013 Emilio López
* Emilio López <emilio@elopez.com.ar>
*
* Copyright 2013 Chen-Yu Tsai
* Chen-Yu Tsai <wens@csie.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/slab.h>
static DEFINE_SPINLOCK(gmac_lock);
/**
* sun7i_a20_gmac_clk_setup - Setup function for A20/A31 GMAC clock module
*
* This clock looks something like this
* ________________________
* MII TX clock from PHY >-----|___________ _________|----> to GMAC core
* GMAC Int. RGMII TX clk >----|___________\__/__gate---|----> to PHY
* Ext. 125MHz RGMII TX clk >--|__divider__/ |
* |________________________|
*
* The external 125 MHz reference is optional, i.e. GMAC can use its
* internal TX clock just fine. The A31 GMAC clock module does not have
* the divider controls for the external reference.
*
* To keep it simple, let the GMAC use either the MII TX clock for MII mode,
* and its internal TX clock for GMII and RGMII modes. The GMAC driver should
* select the appropriate source and gate/ungate the output to the PHY.
*
* Only the GMAC should use this clock. Altering the clock so that it doesn't
* match the GMAC's operation parameters will result in the GMAC not being
* able to send traffic out. The GMAC driver should set the clock rate and
* enable/disable this clock to configure the required state. The clock
* driver then responds by auto-reparenting the clock.
*/
#define SUN7I_A20_GMAC_GPIT 2
#define SUN7I_A20_GMAC_MASK 0x3
#define SUN7I_A20_GMAC_PARENTS 2
static void __init sun7i_a20_gmac_clk_setup(struct device_node *node)
{
struct clk *clk;
struct clk_mux *mux;
struct clk_gate *gate;
const char *clk_name = node->name;
const char *parents[SUN7I_A20_GMAC_PARENTS];
void *reg;
if (of_property_read_string(node, "clock-output-names", &clk_name))
return;
/* allocate mux and gate clock structs */
mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL);
if (!mux)
return;
gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
if (!gate)
goto free_mux;
/* gmac clock requires exactly 2 parents */
parents[0] = of_clk_get_parent_name(node, 0);
parents[1] = of_clk_get_parent_name(node, 1);
if (!parents[0] || !parents[1])
goto free_gate;
reg = of_iomap(node, 0);
if (!reg)
goto free_gate;
/* set up gate and fixed rate properties */
gate->reg = reg;
gate->bit_idx = SUN7I_A20_GMAC_GPIT;
gate->lock = &gmac_lock;
mux->reg = reg;
mux->mask = SUN7I_A20_GMAC_MASK;
mux->flags = CLK_MUX_INDEX_BIT;
mux->lock = &gmac_lock;
clk = clk_register_composite(NULL, clk_name,
parents, SUN7I_A20_GMAC_PARENTS,
&mux->hw, &clk_mux_ops,
NULL, NULL,
&gate->hw, &clk_gate_ops,
0);
if (IS_ERR(clk))
goto iounmap_reg;
of_clk_add_provider(node, of_clk_src_simple_get, clk);
clk_register_clkdev(clk, clk_name, NULL);
return;
iounmap_reg:
iounmap(reg);
free_gate:
kfree(gate);
free_mux:
kfree(mux);
}
CLK_OF_DECLARE(sun7i_a20_gmac, "allwinner,sun7i-a20-gmac-clk",
sun7i_a20_gmac_clk_setup);
drivers/clk/sunxi/clk-sun6i-apb0-gates.c 0 → 100644
浏览文件 @ dd1845af
/*
* Copyright (C) 2014 Free Electrons
*
* License Terms: GNU General Public License v2
* Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
*
* Allwinner A31 APB0 clock gates driver
*
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#define SUN6I_APB0_GATES_MAX_SIZE 32
static int sun6i_a31_apb0_gates_clk_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct clk_onecell_data *clk_data;
const char *clk_parent;
const char *clk_name;
struct resource *r;
void __iomem *reg;
int gate_id;
int ngates;
int i;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg = devm_ioremap_resource(&pdev->dev, r);
if (!reg)
return PTR_ERR(reg);
clk_parent = of_clk_get_parent_name(np, 0);
if (!clk_parent)
return -EINVAL;
ngates = of_property_count_strings(np, "clock-output-names");
if (ngates < 0)
return ngates;
if (!ngates || ngates > SUN6I_APB0_GATES_MAX_SIZE)
return -EINVAL;
clk_data = devm_kzalloc(&pdev->dev, sizeof(struct clk_onecell_data),
GFP_KERNEL);
if (!clk_data)
return -ENOMEM;
clk_data->clks = devm_kzalloc(&pdev->dev,
SUN6I_APB0_GATES_MAX_SIZE *
sizeof(struct clk *),
GFP_KERNEL);
if (!clk_data->clks)
return -ENOMEM;
for (i = 0; i < ngates; i++) {
of_property_read_string_index(np, "clock-output-names",
i, &clk_name);
gate_id = i;
of_property_read_u32_index(np, "clock-indices", i, &gate_id);
WARN_ON(gate_id >= SUN6I_APB0_GATES_MAX_SIZE);
if (gate_id >= SUN6I_APB0_GATES_MAX_SIZE)
continue;
clk_data->clks[gate_id] = clk_register_gate(&pdev->dev,
clk_name,
clk_parent, 0,
reg, gate_id,
0, NULL);
WARN_ON(IS_ERR(clk_data->clks[gate_id]));
}
clk_data->clk_num = ngates;
return of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
}
const struct of_device_id sun6i_a31_apb0_gates_clk_dt_ids[] = {
{ .compatible = "allwinner,sun6i-a31-apb0-gates-clk" },
{ /* sentinel */ }
};
static struct platform_driver sun6i_a31_apb0_gates_clk_driver = {
.driver = {
.name = "sun6i-a31-apb0-gates-clk",
.owner = THIS_MODULE,
.of_match_table = sun6i_a31_apb0_gates_clk_dt_ids,
},
.probe = sun6i_a31_apb0_gates_clk_probe,
};
module_platform_driver(sun6i_a31_apb0_gates_clk_driver);
MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@free-electrons.com>");
MODULE_DESCRIPTION("Allwinner A31 APB0 gate clocks driver");
MODULE_LICENSE("GPL v2");
drivers/clk/sunxi/clk-sun6i-apb0.c 0 → 100644
浏览文件 @ dd1845af
/*
* Copyright (C) 2014 Free Electrons
*
* License Terms: GNU General Public License v2
* Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
*
* Allwinner A31 APB0 clock driver
*
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
/*
* The APB0 clk has a configurable divisor.
*
* We must use a clk_div_table and not a regular power of 2
* divisor here, because the first 2 values divide the clock
* by 2.
*/
static const struct clk_div_table sun6i_a31_apb0_divs[] = {
{ .val = 0, .div = 2, },
{ .val = 1, .div = 2, },
{ .val = 2, .div = 4, },
{ .val = 3, .div = 8, },
{ /* sentinel */ },
};
static int sun6i_a31_apb0_clk_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
const char *clk_name = np->name;
const char *clk_parent;
struct resource *r;
void __iomem *reg;
struct clk *clk;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
reg = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(reg))
return PTR_ERR(reg);
clk_parent = of_clk_get_parent_name(np, 0);
if (!clk_parent)
return -EINVAL;
of_property_read_string(np, "clock-output-names", &clk_name);
clk = clk_register_divider_table(&pdev->dev, clk_name, clk_parent,
0, reg, 0, 2, 0, sun6i_a31_apb0_divs,
NULL);
if (IS_ERR(clk))
return PTR_ERR(clk);
return of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
const struct of_device_id sun6i_a31_apb0_clk_dt_ids[] = {
{ .compatible = "allwinner,sun6i-a31-apb0-clk" },
{ /* sentinel */ }
};
static struct platform_driver sun6i_a31_apb0_clk_driver = {
.driver = {
.name = "sun6i-a31-apb0-clk",
.owner = THIS_MODULE,
.of_match_table = sun6i_a31_apb0_clk_dt_ids,
},
.probe = sun6i_a31_apb0_clk_probe,
};
module_platform_driver(sun6i_a31_apb0_clk_driver);
MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@free-electrons.com>");
MODULE_DESCRIPTION("Allwinner A31 APB0 clock Driver");
MODULE_LICENSE("GPL v2");
drivers/clk/sunxi/clk-sun6i-ar100.c 0 → 100644
浏览文件 @ dd1845af
/*
* Copyright (C) 2014 Free Electrons
*
* License Terms: GNU General Public License v2
* Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
*
* Allwinner A31 AR100 clock driver
*
*/
#include <linux/clk-provider.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#define SUN6I_AR100_MAX_PARENTS 4
#define SUN6I_AR100_SHIFT_MASK 0x3
#define SUN6I_AR100_SHIFT_MAX SUN6I_AR100_SHIFT_MASK
#define SUN6I_AR100_SHIFT_SHIFT 4
#define SUN6I_AR100_DIV_MASK 0x1f
#define SUN6I_AR100_DIV_MAX (SUN6I_AR100_DIV_MASK + 1)
#define SUN6I_AR100_DIV_SHIFT 8
#define SUN6I_AR100_MUX_MASK 0x3
#define SUN6I_AR100_MUX_SHIFT 16
struct ar100_clk {
struct clk_hw hw;
void __iomem *reg;
};
static inline struct ar100_clk *to_ar100_clk(struct clk_hw *hw)
{
return container_of(hw, struct ar100_clk, hw);
}
static unsigned long ar100_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct ar100_clk *clk = to_ar100_clk(hw);
u32 val = readl(clk->reg);
int shift = (val >> SUN6I_AR100_SHIFT_SHIFT) & SUN6I_AR100_SHIFT_MASK;
int div = (val >> SUN6I_AR100_DIV_SHIFT) & SUN6I_AR100_DIV_MASK;
return (parent_rate >> shift) / (div + 1);
}
static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *best_parent_rate,
struct clk **best_parent_clk)
{
int nparents = __clk_get_num_parents(hw->clk);
long best_rate = -EINVAL;
int i;
*best_parent_clk = NULL;
for (i = 0; i < nparents; i++) {
unsigned long parent_rate;
unsigned long tmp_rate;
struct clk *parent;
unsigned long div;
int shift;
parent = clk_get_parent_by_index(hw->clk, i);
parent_rate = __clk_get_rate(parent);
div = DIV_ROUND_UP(parent_rate, rate);
/*
* The AR100 clk contains 2 divisors:
* - one power of 2 divisor
* - one regular divisor
*
* First check if we can safely shift (or divide by a power
* of 2) without losing precision on the requested rate.
*/
shift = ffs(div) - 1;
if (shift > SUN6I_AR100_SHIFT_MAX)
shift = SUN6I_AR100_SHIFT_MAX;
div >>= shift;
/*
* Then if the divisor is still bigger than what the HW
* actually supports, use a bigger shift (or power of 2
* divider) value and accept to lose some precision.
*/
while (div > SUN6I_AR100_DIV_MAX) {
shift++;
div >>= 1;
if (shift > SUN6I_AR100_SHIFT_MAX)
break;
}
/*
* If the shift value (or power of 2 divider) is bigger
* than what the HW actually support, skip this parent.
*/
if (shift > SUN6I_AR100_SHIFT_MAX)
continue;
tmp_rate = (parent_rate >> shift) / div;
if (!*best_parent_clk || tmp_rate > best_rate) {
*best_parent_clk = parent;
*best_parent_rate = parent_rate;
best_rate = tmp_rate;
}
}
return best_rate;
}
static int ar100_set_parent(struct clk_hw *hw, u8 index)
{
struct ar100_clk *clk = to_ar100_clk(hw);
u32 val = readl(clk->reg);
if (index >= SUN6I_AR100_MAX_PARENTS)
return -EINVAL;
val &= ~(SUN6I_AR100_MUX_MASK << SUN6I_AR100_MUX_SHIFT);
val |= (index << SUN6I_AR100_MUX_SHIFT);
writel(val, clk->reg);
return 0;
}
static u8 ar100_get_parent(struct clk_hw *hw)
{
struct ar100_clk *clk = to_ar100_clk(hw);
return (readl(clk->reg) >> SUN6I_AR100_MUX_SHIFT) &
SUN6I_AR100_MUX_MASK;
}
static int ar100_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
unsigned long div = parent_rate / rate;
struct ar100_clk *clk = to_ar100_clk(hw);
u32 val = readl(clk->reg);
int shift;
if (parent_rate % rate)
return -EINVAL;
shift = ffs(div) - 1;
if (shift > SUN6I_AR100_SHIFT_MAX)
shift = SUN6I_AR100_SHIFT_MAX;
div >>= shift;
if (div > SUN6I_AR100_DIV_MAX)
return -EINVAL;
val &= ~((SUN6I_AR100_SHIFT_MASK << SUN6I_AR100_SHIFT_SHIFT) |
(SUN6I_AR100_DIV_MASK << SUN6I_AR100_DIV_SHIFT));
val |= (shift << SUN6I_AR100_SHIFT_SHIFT) |
(div << SUN6I_AR100_DIV_SHIFT);
writel(val, clk->reg);
return 0;
}
struct clk_ops ar100_ops = {
.recalc_rate = ar100_recalc_rate,
.determine_rate = ar100_determine_rate,
.set_parent = ar100_set_parent,
.get_parent = ar100_get_parent,
.set_rate = ar100_set_rate,
};
static int sun6i_a31_ar100_clk_probe(struct platform_device *pdev)
{
const char *parents[SUN6I_AR100_MAX_PARENTS];
struct device_node *np = pdev->dev.of_node;
const char *clk_name = np->name;
struct clk_init_data init;
struct ar100_clk *ar100;
struct resource *r;
struct clk *clk;
int nparents;
int i;
ar100 = devm_kzalloc(&pdev->dev, sizeof(*ar100), GFP_KERNEL);
if (!ar100)
return -ENOMEM;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ar100->reg = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(ar100->reg))
return PTR_ERR(ar100->reg);
nparents = of_clk_get_parent_count(np);
if (nparents > SUN6I_AR100_MAX_PARENTS)
nparents = SUN6I_AR100_MAX_PARENTS;
for (i = 0; i < nparents; i++)
parents[i] = of_clk_get_parent_name(np, i);
of_property_read_string(np, "clock-output-names", &clk_name);
init.name = clk_name;
init.ops = &ar100_ops;
init.parent_names = parents;
init.num_parents = nparents;
init.flags = 0;
ar100->hw.init = &init;
clk = clk_register(&pdev->dev, &ar100->hw);
if (IS_ERR(clk))
return PTR_ERR(clk);
return of_clk_add_provider(np, of_clk_src_simple_get, clk);
}
const struct of_device_id sun6i_a31_ar100_clk_dt_ids[] = {
{ .compatible = "allwinner,sun6i-a31-ar100-clk" },
{ /* sentinel */ }
};
static struct platform_driver sun6i_a31_ar100_clk_driver = {
.driver = {
.name = "sun6i-a31-ar100-clk",
.owner = THIS_MODULE,
.of_match_table = sun6i_a31_ar100_clk_dt_ids,
},
.probe = sun6i_a31_ar100_clk_probe,
};
module_platform_driver(sun6i_a31_ar100_clk_driver);
MODULE_AUTHOR("Boris BREZILLON <boris.brezillon@free-electrons.com>");
MODULE_DESCRIPTION("Allwinner A31 AR100 clock Driver");
MODULE_LICENSE("GPL v2");
drivers/clk/sunxi/clk-sunxi.c
浏览文件 @ dd1845af
...@@ -27,63 +27,6 @@ static DEFINE_SPINLOCK(clk_lock); ...@@ -27,63 +27,6 @@ static DEFINE_SPINLOCK(clk_lock);
/* Maximum number of parents our clocks have */ /* Maximum number of parents our clocks have */
#define SUNXI_MAX_PARENTS 5 #define SUNXI_MAX_PARENTS 5
/**
* sun4i_osc_clk_setup() - Setup function for gatable oscillator
*/
#define SUNXI_OSC24M_GATE 0
static void __init sun4i_osc_clk_setup(struct device_node *node)
{
struct clk *clk;
struct clk_fixed_rate *fixed;
struct clk_gate *gate;
const char *clk_name = node->name;
u32 rate;
if (of_property_read_u32(node, "clock-frequency", &rate))
return;
/* allocate fixed-rate and gate clock structs */
fixed = kzalloc(sizeof(struct clk_fixed_rate), GFP_KERNEL);
if (!fixed)
return;
gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
if (!gate)
goto err_free_fixed;
of_property_read_string(node, "clock-output-names", &clk_name);
/* set up gate and fixed rate properties */
gate->reg = of_iomap(node, 0);
gate->bit_idx = SUNXI_OSC24M_GATE;
gate->lock = &clk_lock;
fixed->fixed_rate = rate;
clk = clk_register_composite(NULL, clk_name,
NULL, 0,
NULL, NULL,
&fixed->hw, &clk_fixed_rate_ops,
&gate->hw, &clk_gate_ops,
CLK_IS_ROOT);
if (IS_ERR(clk))
goto err_free_gate;
of_clk_add_provider(node, of_clk_src_simple_get, clk);
clk_register_clkdev(clk, clk_name, NULL);
return;
err_free_gate:
kfree(gate);
err_free_fixed:
kfree(fixed);
}
CLK_OF_DECLARE(sun4i_osc, "allwinner,sun4i-a10-osc-clk", sun4i_osc_clk_setup);
/** /**
* sun4i_get_pll1_factors() - calculates n, k, m, p factors for PLL1 * sun4i_get_pll1_factors() - calculates n, k, m, p factors for PLL1
* PLL1 rate is calculated as follows * PLL1 rate is calculated as follows
...@@ -408,104 +351,6 @@ static void sun7i_a20_get_out_factors(u32 *freq, u32 parent_rate, ...@@ -408,104 +351,6 @@ static void sun7i_a20_get_out_factors(u32 *freq, u32 parent_rate,
*p = calcp; *p = calcp;
} }
/**
* sun7i_a20_gmac_clk_setup - Setup function for A20/A31 GMAC clock module
*
* This clock looks something like this
* ________________________
* MII TX clock from PHY >-----|___________ _________|----> to GMAC core
* GMAC Int. RGMII TX clk >----|___________\__/__gate---|----> to PHY
* Ext. 125MHz RGMII TX clk >--|__divider__/ |
* |________________________|
*
* The external 125 MHz reference is optional, i.e. GMAC can use its
* internal TX clock just fine. The A31 GMAC clock module does not have
* the divider controls for the external reference.
*
* To keep it simple, let the GMAC use either the MII TX clock for MII mode,
* and its internal TX clock for GMII and RGMII modes. The GMAC driver should
* select the appropriate source and gate/ungate the output to the PHY.
*
* Only the GMAC should use this clock. Altering the clock so that it doesn't
* match the GMAC's operation parameters will result in the GMAC not being
* able to send traffic out. The GMAC driver should set the clock rate and
* enable/disable this clock to configure the required state. The clock
* driver then responds by auto-reparenting the clock.
*/
#define SUN7I_A20_GMAC_GPIT 2
#define SUN7I_A20_GMAC_MASK 0x3
#define SUN7I_A20_GMAC_PARENTS 2
static void __init sun7i_a20_gmac_clk_setup(struct device_node *node)
{
struct clk *clk;
struct clk_mux *mux;
struct clk_gate *gate;
const char *clk_name = node->name;
const char *parents[SUN7I_A20_GMAC_PARENTS];
void *reg;
if (of_property_read_string(node, "clock-output-names", &clk_name))
return;
/* allocate mux and gate clock structs */
mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL);
if (!mux)
return;
gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
if (!gate)
goto free_mux;
/* gmac clock requires exactly 2 parents */
parents[0] = of_clk_get_parent_name(node, 0);
parents[1] = of_clk_get_parent_name(node, 1);
if (!parents[0] || !parents[1])
goto free_gate;
reg = of_iomap(node, 0);
if (!reg)
goto free_gate;
/* set up gate and fixed rate properties */
gate->reg = reg;
gate->bit_idx = SUN7I_A20_GMAC_GPIT;
gate->lock = &clk_lock;
mux->reg = reg;
mux->mask = SUN7I_A20_GMAC_MASK;
mux->flags = CLK_MUX_INDEX_BIT;
mux->lock = &clk_lock;
clk = clk_register_composite(NULL, clk_name,
parents, SUN7I_A20_GMAC_PARENTS,
&mux->hw, &clk_mux_ops,
NULL, NULL,
&gate->hw, &clk_gate_ops,
0);
if (IS_ERR(clk))
goto iounmap_reg;
of_clk_add_provider(node, of_clk_src_simple_get, clk);
clk_register_clkdev(clk, clk_name, NULL);
return;
iounmap_reg:
iounmap(reg);
free_gate:
kfree(gate);
free_mux:
kfree(mux);
}
CLK_OF_DECLARE(sun7i_a20_gmac, "allwinner,sun7i-a20-gmac-clk",
sun7i_a20_gmac_clk_setup);
/** /**
* clk_sunxi_mmc_phase_control() - configures MMC clock phase control * clk_sunxi_mmc_phase_control() - configures MMC clock phase control
*/ */
...@@ -1009,6 +854,11 @@ static const struct gates_data sun5i_a13_usb_gates_data __initconst = { ...@@ -1009,6 +854,11 @@ static const struct gates_data sun5i_a13_usb_gates_data __initconst = {
.reset_mask = 0x03, .reset_mask = 0x03,
}; };
static const struct gates_data sun6i_a31_usb_gates_data __initconst = {
.mask = { BIT(18) | BIT(17) | BIT(16) | BIT(10) | BIT(9) | BIT(8) },
.reset_mask = BIT(2) | BIT(1) | BIT(0),
};
static void __init sunxi_gates_clk_setup(struct device_node *node, static void __init sunxi_gates_clk_setup(struct device_node *node,
struct gates_data *data) struct gates_data *data)
{ {
...@@ -1304,6 +1154,7 @@ static const struct of_device_id clk_gates_match[] __initconst = { ...@@ -1304,6 +1154,7 @@ static const struct of_device_id clk_gates_match[] __initconst = {
{.compatible = "allwinner,sun6i-a31-apb2-gates-clk", .data = &sun6i_a31_apb2_gates_data,}, {.compatible = "allwinner,sun6i-a31-apb2-gates-clk", .data = &sun6i_a31_apb2_gates_data,},
{.compatible = "allwinner,sun4i-a10-usb-clk", .data = &sun4i_a10_usb_gates_data,}, {.compatible = "allwinner,sun4i-a10-usb-clk", .data = &sun4i_a10_usb_gates_data,},
{.compatible = "allwinner,sun5i-a13-usb-clk", .data = &sun5i_a13_usb_gates_data,}, {.compatible = "allwinner,sun5i-a13-usb-clk", .data = &sun5i_a13_usb_gates_data,},
{.compatible = "allwinner,sun6i-a31-usb-clk", .data = &sun6i_a31_usb_gates_data,},
{} {}
}; };
...@@ -1321,33 +1172,10 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat ...@@ -1321,33 +1172,10 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat
} }
} }
/** static void __init sunxi_init_clocks(const char *clocks[], int nclocks)
* System clock protection
*
* By enabling these critical clocks, we prevent their accidental gating
* by the framework
*/
static void __init sunxi_clock_protect(void)
{ {
struct clk *clk; unsigned int i;
/* memory bus clock - sun5i+ */
clk = clk_get(NULL, "mbus");
if (!IS_ERR(clk)) {
clk_prepare_enable(clk);
clk_put(clk);
}
/* DDR clock - sun4i+ */
clk = clk_get(NULL, "pll5_ddr");
if (!IS_ERR(clk)) {
clk_prepare_enable(clk);
clk_put(clk);
}
}
static void __init sunxi_init_clocks(struct device_node *np)
{
/* Register factor clocks */ /* Register factor clocks */
of_sunxi_table_clock_setup(clk_factors_match, sunxi_factors_clk_setup); of_sunxi_table_clock_setup(clk_factors_match, sunxi_factors_clk_setup);
...@@ -1363,11 +1191,48 @@ static void __init sunxi_init_clocks(struct device_node *np) ...@@ -1363,11 +1191,48 @@ static void __init sunxi_init_clocks(struct device_node *np)
/* Register gate clocks */ /* Register gate clocks */
of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup); of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup);
/* Enable core system clocks */ /* Protect the clocks that needs to stay on */
sunxi_clock_protect(); for (i = 0; i < nclocks; i++) {
struct clk *clk = clk_get(NULL, clocks[i]);
if (!IS_ERR(clk))
clk_prepare_enable(clk);
}
}
static const char *sun4i_a10_critical_clocks[] __initdata = {
"pll5_ddr",
};
static void __init sun4i_a10_init_clocks(struct device_node *node)
{
sunxi_init_clocks(sun4i_a10_critical_clocks,
ARRAY_SIZE(sun4i_a10_critical_clocks));
}
CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sun4i_a10_init_clocks);
static const char *sun5i_critical_clocks[] __initdata = {
"mbus",
"pll5_ddr",
};
static void __init sun5i_init_clocks(struct device_node *node)
{
sunxi_init_clocks(sun5i_critical_clocks,
ARRAY_SIZE(sun5i_critical_clocks));
}
CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sun5i_init_clocks);
CLK_OF_DECLARE(sun5i_a13_clk_init, "allwinner,sun5i-a13", sun5i_init_clocks);
CLK_OF_DECLARE(sun7i_a20_clk_init, "allwinner,sun7i-a20", sun5i_init_clocks);
static const char *sun6i_critical_clocks[] __initdata = {
"cpu",
"ahb1_sdram",
};
static void __init sun6i_init_clocks(struct device_node *node)
{
sunxi_init_clocks(sun6i_critical_clocks,
ARRAY_SIZE(sun6i_critical_clocks));
} }
CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sunxi_init_clocks); CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sun6i_init_clocks);
CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sunxi_init_clocks);
CLK_OF_DECLARE(sun5i_a13_clk_init, "allwinner,sun5i-a13", sunxi_init_clocks);
CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sunxi_init_clocks);
CLK_OF_DECLARE(sun7i_a20_clk_init, "allwinner,sun7i-a20", sunxi_init_clocks);
drivers/clk/ti/Makefile
浏览文件 @ dd1845af
...@@ -3,9 +3,11 @@ obj-y += clk.o autoidle.o clockdomain.o ...@@ -3,9 +3,11 @@ obj-y += clk.o autoidle.o clockdomain.o
clk-common = dpll.o composite.o divider.o gate.o \ clk-common = dpll.o composite.o divider.o gate.o \
fixed-factor.o mux.o apll.o fixed-factor.o mux.o apll.o
obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o
obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o
obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o clk-3xxx.o obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o clk-3xxx.o
obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o
obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o
obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o \
clk-dra7-atl.o
obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o
endif endif
drivers/clk/ti/apll.c
浏览文件 @ dd1845af
...@@ -221,3 +221,184 @@ static void __init of_dra7_apll_setup(struct device_node *node) ...@@ -221,3 +221,184 @@ static void __init of_dra7_apll_setup(struct device_node *node)
kfree(init); kfree(init);
} }
CLK_OF_DECLARE(dra7_apll_clock, "ti,dra7-apll-clock", of_dra7_apll_setup); CLK_OF_DECLARE(dra7_apll_clock, "ti,dra7-apll-clock", of_dra7_apll_setup);
#define OMAP2_EN_APLL_LOCKED 0x3
#define OMAP2_EN_APLL_STOPPED 0x0
static int omap2_apll_is_enabled(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
struct dpll_data *ad = clk->dpll_data;
u32 v;
v = ti_clk_ll_ops->clk_readl(ad->control_reg);
v &= ad->enable_mask;
v >>= __ffs(ad->enable_mask);
return v == OMAP2_EN_APLL_LOCKED ? 1 : 0;
}
static unsigned long omap2_apll_recalc(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
if (omap2_apll_is_enabled(hw))
return clk->fixed_rate;
return 0;
}
static int omap2_apll_enable(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
struct dpll_data *ad = clk->dpll_data;
u32 v;
int i = 0;
v = ti_clk_ll_ops->clk_readl(ad->control_reg);
v &= ~ad->enable_mask;
v |= OMAP2_EN_APLL_LOCKED << __ffs(ad->enable_mask);
ti_clk_ll_ops->clk_writel(v, ad->control_reg);
while (1) {
v = ti_clk_ll_ops->clk_readl(ad->idlest_reg);
if (v & ad->idlest_mask)
break;
if (i > MAX_APLL_WAIT_TRIES)
break;
i++;
udelay(1);
}
if (i == MAX_APLL_WAIT_TRIES) {
pr_warn("%s failed to transition to locked\n",
__clk_get_name(clk->hw.clk));
return -EBUSY;
}
return 0;
}
static void omap2_apll_disable(struct clk_hw *hw)
{
struct clk_hw_omap *clk = to_clk_hw_omap(hw);
struct dpll_data *ad = clk->dpll_data;
u32 v;
v = ti_clk_ll_ops->clk_readl(ad->control_reg);
v &= ~ad->enable_mask;
v |= OMAP2_EN_APLL_STOPPED << __ffs(ad->enable_mask);
ti_clk_ll_ops->clk_writel(v, ad->control_reg);
}
static struct clk_ops omap2_apll_ops = {
.enable = &omap2_apll_enable,
.disable = &omap2_apll_disable,
.is_enabled = &omap2_apll_is_enabled,
.recalc_rate = &omap2_apll_recalc,
};
static void omap2_apll_set_autoidle(struct clk_hw_omap *clk, u32 val)
{
struct dpll_data *ad = clk->dpll_data;
u32 v;
v = ti_clk_ll_ops->clk_readl(ad->autoidle_reg);
v &= ~ad->autoidle_mask;
v |= val << __ffs(ad->autoidle_mask);
ti_clk_ll_ops->clk_writel(v, ad->control_reg);
}
#define OMAP2_APLL_AUTOIDLE_LOW_POWER_STOP 0x3
#define OMAP2_APLL_AUTOIDLE_DISABLE 0x0
static void omap2_apll_allow_idle(struct clk_hw_omap *clk)
{
omap2_apll_set_autoidle(clk, OMAP2_APLL_AUTOIDLE_LOW_POWER_STOP);
}
static void omap2_apll_deny_idle(struct clk_hw_omap *clk)
{
omap2_apll_set_autoidle(clk, OMAP2_APLL_AUTOIDLE_DISABLE);
}
static struct clk_hw_omap_ops omap2_apll_hwops = {
.allow_idle = &omap2_apll_allow_idle,
.deny_idle = &omap2_apll_deny_idle,
};
static void __init of_omap2_apll_setup(struct device_node *node)
{
struct dpll_data *ad = NULL;
struct clk_hw_omap *clk_hw = NULL;
struct clk_init_data *init = NULL;
struct clk *clk;
const char *parent_name;
u32 val;
ad = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
init = kzalloc(sizeof(*init), GFP_KERNEL);
if (!ad || !clk_hw || !init)
goto cleanup;
clk_hw->dpll_data = ad;
clk_hw->hw.init = init;
init->ops = &omap2_apll_ops;
init->name = node->name;
clk_hw->ops = &omap2_apll_hwops;
init->num_parents = of_clk_get_parent_count(node);
if (init->num_parents != 1) {
pr_err("%s must have one parent\n", node->name);
goto cleanup;
}
parent_name = of_clk_get_parent_name(node, 0);
init->parent_names = &parent_name;
if (of_property_read_u32(node, "ti,clock-frequency", &val)) {
pr_err("%s missing clock-frequency\n", node->name);
goto cleanup;
}
clk_hw->fixed_rate = val;
if (of_property_read_u32(node, "ti,bit-shift", &val)) {
pr_err("%s missing bit-shift\n", node->name);
goto cleanup;
}
clk_hw->enable_bit = val;
ad->enable_mask = 0x3 << val;
ad->autoidle_mask = 0x3 << val;
if (of_property_read_u32(node, "ti,idlest-shift", &val)) {
pr_err("%s missing idlest-shift\n", node->name);
goto cleanup;
}
ad->idlest_mask = 1 << val;
ad->control_reg = ti_clk_get_reg_addr(node, 0);
ad->autoidle_reg = ti_clk_get_reg_addr(node, 1);
ad->idlest_reg = ti_clk_get_reg_addr(node, 2);
if (!ad->control_reg || !ad->autoidle_reg || !ad->idlest_reg)
goto cleanup;
clk = clk_register(NULL, &clk_hw->hw);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
kfree(init);
return;
}
cleanup:
kfree(ad);
kfree(clk_hw);
kfree(init);
}
CLK_OF_DECLARE(omap2_apll_clock, "ti,omap2-apll-clock",
of_omap2_apll_setup);
drivers/clk/ti/clk-2xxx.c 0 → 100644
浏览文件 @ dd1845af
/*
* OMAP2 Clock init
*
* Copyright (C) 2013 Texas Instruments, Inc
* Tero Kristo (t-kristo@ti.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/clk-provider.h>
#include <linux/clk/ti.h>
static struct ti_dt_clk omap2xxx_clks[] = {
DT_CLK(NULL, "func_32k_ck", "func_32k_ck"),
DT_CLK(NULL, "secure_32k_ck", "secure_32k_ck"),
DT_CLK(NULL, "virt_12m_ck", "virt_12m_ck"),
DT_CLK(NULL, "virt_13m_ck", "virt_13m_ck"),
DT_CLK(NULL, "virt_19200000_ck", "virt_19200000_ck"),
DT_CLK(NULL, "virt_26m_ck", "virt_26m_ck"),
DT_CLK(NULL, "aplls_clkin_ck", "aplls_clkin_ck"),
DT_CLK(NULL, "aplls_clkin_x2_ck", "aplls_clkin_x2_ck"),
DT_CLK(NULL, "osc_ck", "osc_ck"),
DT_CLK(NULL, "sys_ck", "sys_ck"),
DT_CLK(NULL, "alt_ck", "alt_ck"),
DT_CLK(NULL, "mcbsp_clks", "mcbsp_clks"),
DT_CLK(NULL, "dpll_ck", "dpll_ck"),
DT_CLK(NULL, "apll96_ck", "apll96_ck"),
DT_CLK(NULL, "apll54_ck", "apll54_ck"),
DT_CLK(NULL, "func_54m_ck", "func_54m_ck"),
DT_CLK(NULL, "core_ck", "core_ck"),
DT_CLK(NULL, "func_96m_ck", "func_96m_ck"),
DT_CLK(NULL, "func_48m_ck", "func_48m_ck"),
DT_CLK(NULL, "func_12m_ck", "func_12m_ck"),
DT_CLK(NULL, "sys_clkout_src", "sys_clkout_src"),
DT_CLK(NULL, "sys_clkout", "sys_clkout"),
DT_CLK(NULL, "emul_ck", "emul_ck"),
DT_CLK(NULL, "mpu_ck", "mpu_ck"),
DT_CLK(NULL, "dsp_fck", "dsp_fck"),
DT_CLK(NULL, "gfx_3d_fck", "gfx_3d_fck"),
DT_CLK(NULL, "gfx_2d_fck", "gfx_2d_fck"),
DT_CLK(NULL, "gfx_ick", "gfx_ick"),
DT_CLK("omapdss_dss", "ick", "dss_ick"),
DT_CLK(NULL, "dss_ick", "dss_ick"),
DT_CLK(NULL, "dss1_fck", "dss1_fck"),
DT_CLK(NULL, "dss2_fck", "dss2_fck"),
DT_CLK(NULL, "dss_54m_fck", "dss_54m_fck"),
DT_CLK(NULL, "core_l3_ck", "core_l3_ck"),
DT_CLK(NULL, "ssi_fck", "ssi_ssr_sst_fck"),
DT_CLK(NULL, "usb_l4_ick", "usb_l4_ick"),
DT_CLK(NULL, "l4_ck", "l4_ck"),
DT_CLK(NULL, "ssi_l4_ick", "ssi_l4_ick"),
DT_CLK(NULL, "gpt1_ick", "gpt1_ick"),
DT_CLK(NULL, "gpt1_fck", "gpt1_fck"),
DT_CLK(NULL, "gpt2_ick", "gpt2_ick"),
DT_CLK(NULL, "gpt2_fck", "gpt2_fck"),
DT_CLK(NULL, "gpt3_ick", "gpt3_ick"),
DT_CLK(NULL, "gpt3_fck", "gpt3_fck"),
DT_CLK(NULL, "gpt4_ick", "gpt4_ick"),
DT_CLK(NULL, "gpt4_fck", "gpt4_fck"),
DT_CLK(NULL, "gpt5_ick", "gpt5_ick"),
DT_CLK(NULL, "gpt5_fck", "gpt5_fck"),
DT_CLK(NULL, "gpt6_ick", "gpt6_ick"),
DT_CLK(NULL, "gpt6_fck", "gpt6_fck"),
DT_CLK(NULL, "gpt7_ick", "gpt7_ick"),
DT_CLK(NULL, "gpt7_fck", "gpt7_fck"),
DT_CLK(NULL, "gpt8_ick", "gpt8_ick"),
DT_CLK(NULL, "gpt8_fck", "gpt8_fck"),
DT_CLK(NULL, "gpt9_ick", "gpt9_ick"),
DT_CLK(NULL, "gpt9_fck", "gpt9_fck"),
DT_CLK(NULL, "gpt10_ick", "gpt10_ick"),
DT_CLK(NULL, "gpt10_fck", "gpt10_fck"),
DT_CLK(NULL, "gpt11_ick", "gpt11_ick"),
DT_CLK(NULL, "gpt11_fck", "gpt11_fck"),
DT_CLK(NULL, "gpt12_ick", "gpt12_ick"),
DT_CLK(NULL, "gpt12_fck", "gpt12_fck"),
DT_CLK("omap-mcbsp.1", "ick", "mcbsp1_ick"),
DT_CLK(NULL, "mcbsp1_ick", "mcbsp1_ick"),
DT_CLK(NULL, "mcbsp1_fck", "mcbsp1_fck"),
DT_CLK("omap-mcbsp.2", "ick", "mcbsp2_ick"),
DT_CLK(NULL, "mcbsp2_ick", "mcbsp2_ick"),
DT_CLK(NULL, "mcbsp2_fck", "mcbsp2_fck"),
DT_CLK("omap2_mcspi.1", "ick", "mcspi1_ick"),
DT_CLK(NULL, "mcspi1_ick", "mcspi1_ick"),
DT_CLK(NULL, "mcspi1_fck", "mcspi1_fck"),
DT_CLK("omap2_mcspi.2", "ick", "mcspi2_ick"),
DT_CLK(NULL, "mcspi2_ick", "mcspi2_ick"),
DT_CLK(NULL, "mcspi2_fck", "mcspi2_fck"),
DT_CLK(NULL, "uart1_ick", "uart1_ick"),
DT_CLK(NULL, "uart1_fck", "uart1_fck"),
DT_CLK(NULL, "uart2_ick", "uart2_ick"),
DT_CLK(NULL, "uart2_fck", "uart2_fck"),
DT_CLK(NULL, "uart3_ick", "uart3_ick"),
DT_CLK(NULL, "uart3_fck", "uart3_fck"),
DT_CLK(NULL, "gpios_ick", "gpios_ick"),
DT_CLK(NULL, "gpios_fck", "gpios_fck"),
DT_CLK("omap_wdt", "ick", "mpu_wdt_ick"),
DT_CLK(NULL, "mpu_wdt_ick", "mpu_wdt_ick"),
DT_CLK(NULL, "mpu_wdt_fck", "mpu_wdt_fck"),
DT_CLK(NULL, "sync_32k_ick", "sync_32k_ick"),
DT_CLK(NULL, "wdt1_ick", "wdt1_ick"),
DT_CLK(NULL, "omapctrl_ick", "omapctrl_ick"),
DT_CLK("omap24xxcam", "fck", "cam_fck"),
DT_CLK(NULL, "cam_fck", "cam_fck"),
DT_CLK("omap24xxcam", "ick", "cam_ick"),
DT_CLK(NULL, "cam_ick", "cam_ick"),
DT_CLK(NULL, "mailboxes_ick", "mailboxes_ick"),
DT_CLK(NULL, "wdt4_ick", "wdt4_ick"),
DT_CLK(NULL, "wdt4_fck", "wdt4_fck"),
DT_CLK(NULL, "mspro_ick", "mspro_ick"),
DT_CLK(NULL, "mspro_fck", "mspro_fck"),
DT_CLK(NULL, "fac_ick", "fac_ick"),
DT_CLK(NULL, "fac_fck", "fac_fck"),
DT_CLK("omap_hdq.0", "ick", "hdq_ick"),
DT_CLK(NULL, "hdq_ick", "hdq_ick"),
DT_CLK("omap_hdq.0", "fck", "hdq_fck"),
DT_CLK(NULL, "hdq_fck", "hdq_fck"),
DT_CLK("omap_i2c.1", "ick", "i2c1_ick"),
DT_CLK(NULL, "i2c1_ick", "i2c1_ick"),
DT_CLK("omap_i2c.2", "ick", "i2c2_ick"),
DT_CLK(NULL, "i2c2_ick", "i2c2_ick"),
DT_CLK(NULL, "gpmc_fck", "gpmc_fck"),
DT_CLK(NULL, "sdma_fck", "sdma_fck"),
DT_CLK(NULL, "sdma_ick", "sdma_ick"),
DT_CLK(NULL, "sdrc_ick", "sdrc_ick"),
DT_CLK(NULL, "des_ick", "des_ick"),
DT_CLK("omap-sham", "ick", "sha_ick"),
DT_CLK(NULL, "sha_ick", "sha_ick"),
DT_CLK("omap_rng", "ick", "rng_ick"),
DT_CLK(NULL, "rng_ick", "rng_ick"),
DT_CLK("omap-aes", "ick", "aes_ick"),
DT_CLK(NULL, "aes_ick", "aes_ick"),
DT_CLK(NULL, "pka_ick", "pka_ick"),
DT_CLK(NULL, "usb_fck", "usb_fck"),
DT_CLK(NULL, "timer_32k_ck", "func_32k_ck"),
DT_CLK(NULL, "timer_sys_ck", "sys_ck"),
DT_CLK(NULL, "timer_ext_ck", "alt_ck"),
{ .node_name = NULL },
};
static struct ti_dt_clk omap2420_clks[] = {
DT_CLK(NULL, "sys_clkout2_src", "sys_clkout2_src"),
DT_CLK(NULL, "sys_clkout2", "sys_clkout2"),
DT_CLK(NULL, "dsp_ick", "dsp_ick"),
DT_CLK(NULL, "iva1_ifck", "iva1_ifck"),
DT_CLK(NULL, "iva1_mpu_int_ifck", "iva1_mpu_int_ifck"),
DT_CLK(NULL, "wdt3_ick", "wdt3_ick"),
DT_CLK(NULL, "wdt3_fck", "wdt3_fck"),
DT_CLK("mmci-omap.0", "ick", "mmc_ick"),
DT_CLK(NULL, "mmc_ick", "mmc_ick"),
DT_CLK("mmci-omap.0", "fck", "mmc_fck"),
DT_CLK(NULL, "mmc_fck", "mmc_fck"),
DT_CLK(NULL, "eac_ick", "eac_ick"),
DT_CLK(NULL, "eac_fck", "eac_fck"),
DT_CLK(NULL, "i2c1_fck", "i2c1_fck"),
DT_CLK(NULL, "i2c2_fck", "i2c2_fck"),
DT_CLK(NULL, "vlynq_ick", "vlynq_ick"),
DT_CLK(NULL, "vlynq_fck", "vlynq_fck"),
DT_CLK("musb-hdrc", "fck", "osc_ck"),
{ .node_name = NULL },
};
static struct ti_dt_clk omap2430_clks[] = {
DT_CLK("twl", "fck", "osc_ck"),
DT_CLK(NULL, "iva2_1_ick", "iva2_1_ick"),
DT_CLK(NULL, "mdm_ick", "mdm_ick"),
DT_CLK(NULL, "mdm_osc_ck", "mdm_osc_ck"),
DT_CLK("omap-mcbsp.3", "ick", "mcbsp3_ick"),
DT_CLK(NULL, "mcbsp3_ick", "mcbsp3_ick"),
DT_CLK(NULL, "mcbsp3_fck", "mcbsp3_fck"),
DT_CLK("omap-mcbsp.4", "ick", "mcbsp4_ick"),
DT_CLK(NULL, "mcbsp4_ick", "mcbsp4_ick"),
DT_CLK(NULL, "mcbsp4_fck", "mcbsp4_fck"),
DT_CLK("omap-mcbsp.5", "ick", "mcbsp5_ick"),
DT_CLK(NULL, "mcbsp5_ick", "mcbsp5_ick"),
DT_CLK(NULL, "mcbsp5_fck", "mcbsp5_fck"),
DT_CLK("omap2_mcspi.3", "ick", "mcspi3_ick"),
DT_CLK(NULL, "mcspi3_ick", "mcspi3_ick"),
DT_CLK(NULL, "mcspi3_fck", "mcspi3_fck"),
DT_CLK(NULL, "icr_ick", "icr_ick"),
DT_CLK(NULL, "i2chs1_fck", "i2chs1_fck"),
DT_CLK(NULL, "i2chs2_fck", "i2chs2_fck"),
DT_CLK("musb-omap2430", "ick", "usbhs_ick"),
DT_CLK(NULL, "usbhs_ick", "usbhs_ick"),
DT_CLK("omap_hsmmc.0", "ick", "mmchs1_ick"),
DT_CLK(NULL, "mmchs1_ick", "mmchs1_ick"),
DT_CLK(NULL, "mmchs1_fck", "mmchs1_fck"),
DT_CLK("omap_hsmmc.1", "ick", "mmchs2_ick"),
DT_CLK(NULL, "mmchs2_ick", "mmchs2_ick"),
DT_CLK(NULL, "mmchs2_fck", "mmchs2_fck"),
DT_CLK(NULL, "gpio5_ick", "gpio5_ick"),
DT_CLK(NULL, "gpio5_fck", "gpio5_fck"),
DT_CLK(NULL, "mdm_intc_ick", "mdm_intc_ick"),
DT_CLK("omap_hsmmc.0", "mmchsdb_fck", "mmchsdb1_fck"),
DT_CLK(NULL, "mmchsdb1_fck", "mmchsdb1_fck"),
DT_CLK("omap_hsmmc.1", "mmchsdb_fck", "mmchsdb2_fck"),
DT_CLK(NULL, "mmchsdb2_fck", "mmchsdb2_fck"),
{ .node_name = NULL },
};
static const char *enable_init_clks[] = {
"apll96_ck",
"apll54_ck",
"sync_32k_ick",
"omapctrl_ick",
"gpmc_fck",
"sdrc_ick",
};
enum {
OMAP2_SOC_OMAP2420,
OMAP2_SOC_OMAP2430,
};
static int __init omap2xxx_dt_clk_init(int soc_type)
{
ti_dt_clocks_register(omap2xxx_clks);
if (soc_type == OMAP2_SOC_OMAP2420)
ti_dt_clocks_register(omap2420_clks);
else
ti_dt_clocks_register(omap2430_clks);
omap2xxx_clkt_vps_init();
omap2_clk_disable_autoidle_all();
omap2_clk_enable_init_clocks(enable_init_clks,
ARRAY_SIZE(enable_init_clks));
pr_info("Clocking rate (Crystal/DPLL/MPU): %ld.%01ld/%ld/%ld MHz\n",
(clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 1000000),
(clk_get_rate(clk_get_sys(NULL, "sys_ck")) / 100000) % 10,
(clk_get_rate(clk_get_sys(NULL, "dpll_ck")) / 1000000),
(clk_get_rate(clk_get_sys(NULL, "mpu_ck")) / 1000000));
return 0;
}
int __init omap2420_dt_clk_init(void)
{
return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2420);
}
int __init omap2430_dt_clk_init(void)
{
return omap2xxx_dt_clk_init(OMAP2_SOC_OMAP2430);
}
drivers/clk/ti/clk-54xx.c
浏览文件 @ dd1845af
...@@ -240,6 +240,12 @@ int __init omap5xxx_dt_clk_init(void) ...@@ -240,6 +240,12 @@ int __init omap5xxx_dt_clk_init(void)
if (rc) if (rc)
pr_err("%s: failed to configure ABE DPLL!\n", __func__); pr_err("%s: failed to configure ABE DPLL!\n", __func__);
abe_dpll = clk_get_sys(NULL, "dpll_abe_m2x2_ck");
if (!rc)
rc = clk_set_rate(abe_dpll, OMAP5_DPLL_ABE_DEFFREQ * 2);
if (rc)
pr_err("%s: failed to configure ABE m2x2 DPLL!\n", __func__);
usb_dpll = clk_get_sys(NULL, "dpll_usb_ck"); usb_dpll = clk_get_sys(NULL, "dpll_usb_ck");
rc = clk_set_rate(usb_dpll, OMAP5_DPLL_USB_DEFFREQ); rc = clk_set_rate(usb_dpll, OMAP5_DPLL_USB_DEFFREQ);
if (rc) if (rc)
......
drivers/clk/ti/clk-7xx.c
浏览文件 @ dd1845af
...@@ -24,7 +24,7 @@ static struct ti_dt_clk dra7xx_clks[] = { ...@@ -24,7 +24,7 @@ static struct ti_dt_clk dra7xx_clks[] = {
DT_CLK(NULL, "atl_clkin0_ck", "atl_clkin0_ck"), DT_CLK(NULL, "atl_clkin0_ck", "atl_clkin0_ck"),
DT_CLK(NULL, "atl_clkin1_ck", "atl_clkin1_ck"), DT_CLK(NULL, "atl_clkin1_ck", "atl_clkin1_ck"),
DT_CLK(NULL, "atl_clkin2_ck", "atl_clkin2_ck"), DT_CLK(NULL, "atl_clkin2_ck", "atl_clkin2_ck"),
DT_CLK(NULL, "atlclkin3_ck", "atlclkin3_ck"), DT_CLK(NULL, "atl_clkin3_ck", "atl_clkin3_ck"),
DT_CLK(NULL, "hdmi_clkin_ck", "hdmi_clkin_ck"), DT_CLK(NULL, "hdmi_clkin_ck", "hdmi_clkin_ck"),
DT_CLK(NULL, "mlb_clkin_ck", "mlb_clkin_ck"), DT_CLK(NULL, "mlb_clkin_ck", "mlb_clkin_ck"),
DT_CLK(NULL, "mlbp_clkin_ck", "mlbp_clkin_ck"), DT_CLK(NULL, "mlbp_clkin_ck", "mlbp_clkin_ck"),
......
drivers/clk/ti/clk-dra7-atl.c 0 → 100644
浏览文件 @ dd1845af
/*
* DRA7 ATL (Audio Tracking Logic) clock driver
*
* Copyright (C) 2013 Texas Instruments, Inc.
*
* Peter Ujfalusi <peter.ujfalusi@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/clk-provider.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#define DRA7_ATL_INSTANCES 4
#define DRA7_ATL_PPMR_REG(id) (0x200 + (id * 0x80))
#define DRA7_ATL_BBSR_REG(id) (0x204 + (id * 0x80))
#define DRA7_ATL_ATLCR_REG(id) (0x208 + (id * 0x80))
#define DRA7_ATL_SWEN_REG(id) (0x210 + (id * 0x80))
#define DRA7_ATL_BWSMUX_REG(id) (0x214 + (id * 0x80))
#define DRA7_ATL_AWSMUX_REG(id) (0x218 + (id * 0x80))
#define DRA7_ATL_PCLKMUX_REG(id) (0x21c + (id * 0x80))
#define DRA7_ATL_SWEN BIT(0)
#define DRA7_ATL_DIVIDER_MASK (0x1f)
#define DRA7_ATL_PCLKMUX BIT(0)
struct dra7_atl_clock_info;
struct dra7_atl_desc {
struct clk *clk;
struct clk_hw hw;
struct dra7_atl_clock_info *cinfo;
int id;
bool probed; /* the driver for the IP has been loaded */
bool valid; /* configured */
bool enabled;
u32 bws; /* Baseband Word Select Mux */
u32 aws; /* Audio Word Select Mux */
u32 divider; /* Cached divider value */
};
struct dra7_atl_clock_info {
struct device *dev;
void __iomem *iobase;
struct dra7_atl_desc *cdesc;
};
#define to_atl_desc(_hw) container_of(_hw, struct dra7_atl_desc, hw)
static inline void atl_write(struct dra7_atl_clock_info *cinfo, u32 reg,
u32 val)
{
__raw_writel(val, cinfo->iobase + reg);
}
static inline int atl_read(struct dra7_atl_clock_info *cinfo, u32 reg)
{
return __raw_readl(cinfo->iobase + reg);
}
static int atl_clk_enable(struct clk_hw *hw)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
if (!cdesc->probed)
goto out;
if (unlikely(!cdesc->valid))
dev_warn(cdesc->cinfo->dev, "atl%d has not been configured\n",
cdesc->id);
pm_runtime_get_sync(cdesc->cinfo->dev);
atl_write(cdesc->cinfo, DRA7_ATL_ATLCR_REG(cdesc->id),
cdesc->divider - 1);
atl_write(cdesc->cinfo, DRA7_ATL_SWEN_REG(cdesc->id), DRA7_ATL_SWEN);
out:
cdesc->enabled = true;
return 0;
}
static void atl_clk_disable(struct clk_hw *hw)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
if (!cdesc->probed)
goto out;
atl_write(cdesc->cinfo, DRA7_ATL_SWEN_REG(cdesc->id), 0);
pm_runtime_put_sync(cdesc->cinfo->dev);
out:
cdesc->enabled = false;
}
static int atl_clk_is_enabled(struct clk_hw *hw)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
return cdesc->enabled;
}
static unsigned long atl_clk_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
return parent_rate / cdesc->divider;
}
static long atl_clk_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *parent_rate)
{
unsigned divider;
divider = (*parent_rate + rate / 2) / rate;
if (divider > DRA7_ATL_DIVIDER_MASK + 1)
divider = DRA7_ATL_DIVIDER_MASK + 1;
return *parent_rate / divider;
}
static int atl_clk_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct dra7_atl_desc *cdesc = to_atl_desc(hw);
u32 divider;
divider = ((parent_rate + rate / 2) / rate) - 1;
if (divider > DRA7_ATL_DIVIDER_MASK)
divider = DRA7_ATL_DIVIDER_MASK;
cdesc->divider = divider + 1;
return 0;
}
const struct clk_ops atl_clk_ops = {
.enable = atl_clk_enable,
.disable = atl_clk_disable,
.is_enabled = atl_clk_is_enabled,
.recalc_rate = atl_clk_recalc_rate,
.round_rate = atl_clk_round_rate,
.set_rate = atl_clk_set_rate,
};
static void __init of_dra7_atl_clock_setup(struct device_node *node)
{
struct dra7_atl_desc *clk_hw = NULL;
struct clk_init_data init = { 0 };
const char **parent_names = NULL;
struct clk *clk;
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
if (!clk_hw) {
pr_err("%s: could not allocate dra7_atl_desc\n", __func__);
return;
}
clk_hw->hw.init = &init;
clk_hw->divider = 1;
init.name = node->name;
init.ops = &atl_clk_ops;
init.flags = CLK_IGNORE_UNUSED;
init.num_parents = of_clk_get_parent_count(node);
if (init.num_parents != 1) {
pr_err("%s: atl clock %s must have 1 parent\n", __func__,
node->name);
goto cleanup;
}
parent_names = kzalloc(sizeof(char *), GFP_KERNEL);
if (!parent_names)
goto cleanup;
parent_names[0] = of_clk_get_parent_name(node, 0);
init.parent_names = parent_names;
clk = clk_register(NULL, &clk_hw->hw);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
return;
}
cleanup:
kfree(parent_names);
kfree(clk_hw);
}
CLK_OF_DECLARE(dra7_atl_clock, "ti,dra7-atl-clock", of_dra7_atl_clock_setup);
static int of_dra7_atl_clk_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
struct dra7_atl_clock_info *cinfo;
int i;
int ret = 0;
if (!node)
return -ENODEV;
cinfo = devm_kzalloc(&pdev->dev, sizeof(*cinfo), GFP_KERNEL);
if (!cinfo)
return -ENOMEM;
cinfo->iobase = of_iomap(node, 0);
cinfo->dev = &pdev->dev;
pm_runtime_enable(cinfo->dev);
pm_runtime_get_sync(cinfo->dev);
atl_write(cinfo, DRA7_ATL_PCLKMUX_REG(0), DRA7_ATL_PCLKMUX);
for (i = 0; i < DRA7_ATL_INSTANCES; i++) {
struct device_node *cfg_node;
char prop[5];
struct dra7_atl_desc *cdesc;
struct of_phandle_args clkspec;
struct clk *clk;
int rc;
rc = of_parse_phandle_with_args(node, "ti,provided-clocks",
NULL, i, &clkspec);
if (rc) {
pr_err("%s: failed to lookup atl clock %d\n", __func__,
i);
return -EINVAL;
}
clk = of_clk_get_from_provider(&clkspec);
cdesc = to_atl_desc(__clk_get_hw(clk));
cdesc->cinfo = cinfo;
cdesc->id = i;
/* Get configuration for the ATL instances */
snprintf(prop, sizeof(prop), "atl%u", i);
cfg_node = of_find_node_by_name(node, prop);
if (cfg_node) {
ret = of_property_read_u32(cfg_node, "bws",
&cdesc->bws);
ret |= of_property_read_u32(cfg_node, "aws",
&cdesc->aws);
if (!ret) {
cdesc->valid = true;
atl_write(cinfo, DRA7_ATL_BWSMUX_REG(i),
cdesc->bws);
atl_write(cinfo, DRA7_ATL_AWSMUX_REG(i),
cdesc->aws);
}
}
cdesc->probed = true;
/*
* Enable the clock if it has been asked prior to loading the
* hw driver
*/
if (cdesc->enabled)
atl_clk_enable(__clk_get_hw(clk));
}
pm_runtime_put_sync(cinfo->dev);
return ret;
}
static int of_dra7_atl_clk_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
return 0;
}
static struct of_device_id of_dra7_atl_clk_match_tbl[] = {
{ .compatible = "ti,dra7-atl", },
{},
};
MODULE_DEVICE_TABLE(of, of_dra7_atl_clk_match_tbl);
static struct platform_driver dra7_atl_clk_driver = {
.driver = {
.name = "dra7-atl",
.owner = THIS_MODULE,
.of_match_table = of_dra7_atl_clk_match_tbl,
},
.probe = of_dra7_atl_clk_probe,
.remove = of_dra7_atl_clk_remove,
};
module_platform_driver(dra7_atl_clk_driver);
MODULE_DESCRIPTION("Clock driver for DRA7 Audio Tracking Logic");
MODULE_ALIAS("platform:dra7-atl-clock");
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_LICENSE("GPL v2");
drivers/clk/ti/dpll.c
浏览文件 @ dd1845af
...@@ -25,8 +25,6 @@ ...@@ -25,8 +25,6 @@
#undef pr_fmt #undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__ #define pr_fmt(fmt) "%s: " fmt, __func__
#define DPLL_HAS_AUTOIDLE 0x1
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \ #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX) defined(CONFIG_SOC_DRA7XX)
static const struct clk_ops dpll_m4xen_ck_ops = { static const struct clk_ops dpll_m4xen_ck_ops = {
...@@ -37,21 +35,18 @@ static const struct clk_ops dpll_m4xen_ck_ops = { ...@@ -37,21 +35,18 @@ static const struct clk_ops dpll_m4xen_ck_ops = {
.set_rate = &omap3_noncore_dpll_set_rate, .set_rate = &omap3_noncore_dpll_set_rate,
.get_parent = &omap2_init_dpll_parent, .get_parent = &omap2_init_dpll_parent,
}; };
#else
static const struct clk_ops dpll_m4xen_ck_ops = {};
#endif #endif
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) || \
defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX) || \
defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static const struct clk_ops dpll_core_ck_ops = { static const struct clk_ops dpll_core_ck_ops = {
.recalc_rate = &omap3_dpll_recalc, .recalc_rate = &omap3_dpll_recalc,
.get_parent = &omap2_init_dpll_parent, .get_parent = &omap2_init_dpll_parent,
}; };
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
};
#endif
static const struct clk_ops dpll_ck_ops = { static const struct clk_ops dpll_ck_ops = {
.enable = &omap3_noncore_dpll_enable, .enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable, .disable = &omap3_noncore_dpll_disable,
...@@ -67,6 +62,33 @@ static const struct clk_ops dpll_no_gate_ck_ops = { ...@@ -67,6 +62,33 @@ static const struct clk_ops dpll_no_gate_ck_ops = {
.round_rate = &omap2_dpll_round_rate, .round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate, .set_rate = &omap3_noncore_dpll_set_rate,
}; };
#else
static const struct clk_ops dpll_core_ck_ops = {};
static const struct clk_ops dpll_ck_ops = {};
static const struct clk_ops dpll_no_gate_ck_ops = {};
const struct clk_hw_omap_ops clkhwops_omap3_dpll = {};
#endif
#ifdef CONFIG_ARCH_OMAP2
static const struct clk_ops omap2_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap2_dpllcore_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap2_reprogram_dpllcore,
};
#else
static const struct clk_ops omap2_dpll_core_ck_ops = {};
#endif
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
};
#else
static const struct clk_ops omap3_dpll_core_ck_ops = {};
#endif
#ifdef CONFIG_ARCH_OMAP3 #ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_ck_ops = { static const struct clk_ops omap3_dpll_ck_ops = {
...@@ -193,14 +215,12 @@ static void ti_clk_register_dpll_x2(struct device_node *node, ...@@ -193,14 +215,12 @@ static void ti_clk_register_dpll_x2(struct device_node *node,
* @node: device node containing the DPLL info * @node: device node containing the DPLL info
* @ops: ops for the DPLL * @ops: ops for the DPLL
* @ddt: DPLL data template to use * @ddt: DPLL data template to use
* @init_flags: flags for controlling init types
* *
* Initializes a DPLL clock from device tree data. * Initializes a DPLL clock from device tree data.
*/ */
static void __init of_ti_dpll_setup(struct device_node *node, static void __init of_ti_dpll_setup(struct device_node *node,
const struct clk_ops *ops, const struct clk_ops *ops,
const struct dpll_data *ddt, const struct dpll_data *ddt)
u8 init_flags)
{ {
struct clk_hw_omap *clk_hw = NULL; struct clk_hw_omap *clk_hw = NULL;
struct clk_init_data *init = NULL; struct clk_init_data *init = NULL;
...@@ -241,13 +261,30 @@ static void __init of_ti_dpll_setup(struct device_node *node, ...@@ -241,13 +261,30 @@ static void __init of_ti_dpll_setup(struct device_node *node,
init->parent_names = parent_names; init->parent_names = parent_names;
dd->control_reg = ti_clk_get_reg_addr(node, 0); dd->control_reg = ti_clk_get_reg_addr(node, 0);
/*
* Special case for OMAP2 DPLL, register order is different due to
* missing idlest_reg, also clkhwops is different. Detected from
* missing idlest_mask.
*/
if (!dd->idlest_mask) {
dd->mult_div1_reg = ti_clk_get_reg_addr(node, 1);
#ifdef CONFIG_ARCH_OMAP2
clk_hw->ops = &clkhwops_omap2xxx_dpll;
omap2xxx_clkt_dpllcore_init(&clk_hw->hw);
#endif
} else {
dd->idlest_reg = ti_clk_get_reg_addr(node, 1); dd->idlest_reg = ti_clk_get_reg_addr(node, 1);
if (!dd->idlest_reg)
goto cleanup;
dd->mult_div1_reg = ti_clk_get_reg_addr(node, 2); dd->mult_div1_reg = ti_clk_get_reg_addr(node, 2);
}
if (!dd->control_reg || !dd->idlest_reg || !dd->mult_div1_reg) if (!dd->control_reg || !dd->mult_div1_reg)
goto cleanup; goto cleanup;
if (init_flags & DPLL_HAS_AUTOIDLE) { if (dd->autoidle_mask) {
dd->autoidle_reg = ti_clk_get_reg_addr(node, 3); dd->autoidle_reg = ti_clk_get_reg_addr(node, 3);
if (!dd->autoidle_reg) if (!dd->autoidle_reg)
goto cleanup; goto cleanup;
...@@ -310,7 +347,7 @@ static void __init of_ti_omap3_dpll_setup(struct device_node *node) ...@@ -310,7 +347,7 @@ static void __init of_ti_omap3_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock", CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock",
of_ti_omap3_dpll_setup); of_ti_omap3_dpll_setup);
...@@ -329,7 +366,7 @@ static void __init of_ti_omap3_core_dpll_setup(struct device_node *node) ...@@ -329,7 +366,7 @@ static void __init of_ti_omap3_core_dpll_setup(struct device_node *node)
.freqsel_mask = 0xf0, .freqsel_mask = 0xf0,
}; };
of_ti_dpll_setup(node, &omap3_dpll_core_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &omap3_dpll_core_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap3_core_dpll_clock, "ti,omap3-dpll-core-clock", CLK_OF_DECLARE(ti_omap3_core_dpll_clock, "ti,omap3-dpll-core-clock",
of_ti_omap3_core_dpll_setup); of_ti_omap3_core_dpll_setup);
...@@ -349,7 +386,7 @@ static void __init of_ti_omap3_per_dpll_setup(struct device_node *node) ...@@ -349,7 +386,7 @@ static void __init of_ti_omap3_per_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap3_per_dpll_clock, "ti,omap3-dpll-per-clock", CLK_OF_DECLARE(ti_omap3_per_dpll_clock, "ti,omap3-dpll-per-clock",
of_ti_omap3_per_dpll_setup); of_ti_omap3_per_dpll_setup);
...@@ -371,7 +408,7 @@ static void __init of_ti_omap3_per_jtype_dpll_setup(struct device_node *node) ...@@ -371,7 +408,7 @@ static void __init of_ti_omap3_per_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap3_per_jtype_dpll_clock, "ti,omap3-dpll-per-j-type-clock", CLK_OF_DECLARE(ti_omap3_per_jtype_dpll_clock, "ti,omap3-dpll-per-j-type-clock",
of_ti_omap3_per_jtype_dpll_setup); of_ti_omap3_per_jtype_dpll_setup);
...@@ -391,11 +428,32 @@ static void __init of_ti_omap4_dpll_setup(struct device_node *node) ...@@ -391,11 +428,32 @@ static void __init of_ti_omap4_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap4_dpll_clock, "ti,omap4-dpll-clock", CLK_OF_DECLARE(ti_omap4_dpll_clock, "ti,omap4-dpll-clock",
of_ti_omap4_dpll_setup); of_ti_omap4_dpll_setup);
static void __init of_ti_omap5_mpu_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.dcc_mask = BIT(22),
.dcc_rate = 1400000000, /* DCC beyond 1.4GHz */
.min_divider = 1,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(of_ti_omap5_mpu_dpll_clock, "ti,omap5-mpu-dpll-clock",
of_ti_omap5_mpu_dpll_setup);
static void __init of_ti_omap4_core_dpll_setup(struct device_node *node) static void __init of_ti_omap4_core_dpll_setup(struct device_node *node)
{ {
const struct dpll_data dd = { const struct dpll_data dd = {
...@@ -410,7 +468,7 @@ static void __init of_ti_omap4_core_dpll_setup(struct device_node *node) ...@@ -410,7 +468,7 @@ static void __init of_ti_omap4_core_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap4_core_dpll_clock, "ti,omap4-dpll-core-clock", CLK_OF_DECLARE(ti_omap4_core_dpll_clock, "ti,omap4-dpll-core-clock",
of_ti_omap4_core_dpll_setup); of_ti_omap4_core_dpll_setup);
...@@ -433,7 +491,7 @@ static void __init of_ti_omap4_m4xen_dpll_setup(struct device_node *node) ...@@ -433,7 +491,7 @@ static void __init of_ti_omap4_m4xen_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap4_m4xen_dpll_clock, "ti,omap4-dpll-m4xen-clock", CLK_OF_DECLARE(ti_omap4_m4xen_dpll_clock, "ti,omap4-dpll-m4xen-clock",
of_ti_omap4_m4xen_dpll_setup); of_ti_omap4_m4xen_dpll_setup);
...@@ -454,7 +512,7 @@ static void __init of_ti_omap4_jtype_dpll_setup(struct device_node *node) ...@@ -454,7 +512,7 @@ static void __init of_ti_omap4_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd, DPLL_HAS_AUTOIDLE); of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_omap4_jtype_dpll_clock, "ti,omap4-dpll-j-type-clock", CLK_OF_DECLARE(ti_omap4_jtype_dpll_clock, "ti,omap4-dpll-j-type-clock",
of_ti_omap4_jtype_dpll_setup); of_ti_omap4_jtype_dpll_setup);
...@@ -465,7 +523,6 @@ static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node) ...@@ -465,7 +523,6 @@ static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node)
const struct dpll_data dd = { const struct dpll_data dd = {
.idlest_mask = 0x1, .idlest_mask = 0x1,
.enable_mask = 0x7, .enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8, .mult_mask = 0x7ff << 8,
.div1_mask = 0x7f, .div1_mask = 0x7f,
.max_multiplier = 2047, .max_multiplier = 2047,
...@@ -474,7 +531,7 @@ static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node) ...@@ -474,7 +531,7 @@ static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd, 0); of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_am3_no_gate_dpll_clock, "ti,am3-dpll-no-gate-clock", CLK_OF_DECLARE(ti_am3_no_gate_dpll_clock, "ti,am3-dpll-no-gate-clock",
of_ti_am3_no_gate_dpll_setup); of_ti_am3_no_gate_dpll_setup);
...@@ -484,7 +541,6 @@ static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node) ...@@ -484,7 +541,6 @@ static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node)
const struct dpll_data dd = { const struct dpll_data dd = {
.idlest_mask = 0x1, .idlest_mask = 0x1,
.enable_mask = 0x7, .enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8, .mult_mask = 0x7ff << 8,
.div1_mask = 0x7f, .div1_mask = 0x7f,
.max_multiplier = 4095, .max_multiplier = 4095,
...@@ -494,7 +550,7 @@ static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node) ...@@ -494,7 +550,7 @@ static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_ck_ops, &dd, 0); of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_am3_jtype_dpll_clock, "ti,am3-dpll-j-type-clock", CLK_OF_DECLARE(ti_am3_jtype_dpll_clock, "ti,am3-dpll-j-type-clock",
of_ti_am3_jtype_dpll_setup); of_ti_am3_jtype_dpll_setup);
...@@ -504,7 +560,6 @@ static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node) ...@@ -504,7 +560,6 @@ static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node)
const struct dpll_data dd = { const struct dpll_data dd = {
.idlest_mask = 0x1, .idlest_mask = 0x1,
.enable_mask = 0x7, .enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8, .mult_mask = 0x7ff << 8,
.div1_mask = 0x7f, .div1_mask = 0x7f,
.max_multiplier = 2047, .max_multiplier = 2047,
...@@ -514,7 +569,7 @@ static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node) ...@@ -514,7 +569,7 @@ static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd, 0); of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_am3_no_gate_jtype_dpll_clock, CLK_OF_DECLARE(ti_am3_no_gate_jtype_dpll_clock,
"ti,am3-dpll-no-gate-j-type-clock", "ti,am3-dpll-no-gate-j-type-clock",
...@@ -525,7 +580,6 @@ static void __init of_ti_am3_dpll_setup(struct device_node *node) ...@@ -525,7 +580,6 @@ static void __init of_ti_am3_dpll_setup(struct device_node *node)
const struct dpll_data dd = { const struct dpll_data dd = {
.idlest_mask = 0x1, .idlest_mask = 0x1,
.enable_mask = 0x7, .enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8, .mult_mask = 0x7ff << 8,
.div1_mask = 0x7f, .div1_mask = 0x7f,
.max_multiplier = 2047, .max_multiplier = 2047,
...@@ -534,7 +588,7 @@ static void __init of_ti_am3_dpll_setup(struct device_node *node) ...@@ -534,7 +588,7 @@ static void __init of_ti_am3_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_ck_ops, &dd, 0); of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_am3_dpll_clock, "ti,am3-dpll-clock", of_ti_am3_dpll_setup); CLK_OF_DECLARE(ti_am3_dpll_clock, "ti,am3-dpll-clock", of_ti_am3_dpll_setup);
...@@ -543,7 +597,6 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node) ...@@ -543,7 +597,6 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node)
const struct dpll_data dd = { const struct dpll_data dd = {
.idlest_mask = 0x1, .idlest_mask = 0x1,
.enable_mask = 0x7, .enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8, .mult_mask = 0x7ff << 8,
.div1_mask = 0x7f, .div1_mask = 0x7f,
.max_multiplier = 2047, .max_multiplier = 2047,
...@@ -552,7 +605,22 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node) ...@@ -552,7 +605,22 @@ static void __init of_ti_am3_core_dpll_setup(struct device_node *node)
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED), .modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
}; };
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd, 0); of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd);
} }
CLK_OF_DECLARE(ti_am3_core_dpll_clock, "ti,am3-dpll-core-clock", CLK_OF_DECLARE(ti_am3_core_dpll_clock, "ti,am3-dpll-core-clock",
of_ti_am3_core_dpll_setup); of_ti_am3_core_dpll_setup);
static void __init of_ti_omap2_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.enable_mask = 0x3,
.mult_mask = 0x3ff << 12,
.div1_mask = 0xf << 8,
.max_divider = 16,
.min_divider = 1,
};
of_ti_dpll_setup(node, &omap2_dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap2_core_dpll_clock, "ti,omap2-dpll-core-clock",
of_ti_omap2_core_dpll_setup);
drivers/clk/ti/gate.c
浏览文件 @ dd1845af
...@@ -185,7 +185,7 @@ of_ti_composite_no_wait_gate_clk_setup(struct device_node *node) ...@@ -185,7 +185,7 @@ of_ti_composite_no_wait_gate_clk_setup(struct device_node *node)
CLK_OF_DECLARE(ti_composite_no_wait_gate_clk, "ti,composite-no-wait-gate-clock", CLK_OF_DECLARE(ti_composite_no_wait_gate_clk, "ti,composite-no-wait-gate-clock",
of_ti_composite_no_wait_gate_clk_setup); of_ti_composite_no_wait_gate_clk_setup);
#ifdef CONFIG_ARCH_OMAP3 #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3)
static void __init of_ti_composite_interface_clk_setup(struct device_node *node) static void __init of_ti_composite_interface_clk_setup(struct device_node *node)
{ {
_of_ti_composite_gate_clk_setup(node, &clkhwops_iclk_wait); _of_ti_composite_gate_clk_setup(node, &clkhwops_iclk_wait);
......
drivers/clk/ti/interface.c
浏览文件 @ dd1845af
...@@ -94,6 +94,7 @@ static void __init of_ti_no_wait_interface_clk_setup(struct device_node *node) ...@@ -94,6 +94,7 @@ static void __init of_ti_no_wait_interface_clk_setup(struct device_node *node)
CLK_OF_DECLARE(ti_no_wait_interface_clk, "ti,omap3-no-wait-interface-clock", CLK_OF_DECLARE(ti_no_wait_interface_clk, "ti,omap3-no-wait-interface-clock",
of_ti_no_wait_interface_clk_setup); of_ti_no_wait_interface_clk_setup);
#ifdef CONFIG_ARCH_OMAP3
static void __init of_ti_hsotgusb_interface_clk_setup(struct device_node *node) static void __init of_ti_hsotgusb_interface_clk_setup(struct device_node *node)
{ {
_of_ti_interface_clk_setup(node, _of_ti_interface_clk_setup(node,
...@@ -123,3 +124,13 @@ static void __init of_ti_am35xx_interface_clk_setup(struct device_node *node) ...@@ -123,3 +124,13 @@ static void __init of_ti_am35xx_interface_clk_setup(struct device_node *node)
} }
CLK_OF_DECLARE(ti_am35xx_interface_clk, "ti,am35xx-interface-clock", CLK_OF_DECLARE(ti_am35xx_interface_clk, "ti,am35xx-interface-clock",
of_ti_am35xx_interface_clk_setup); of_ti_am35xx_interface_clk_setup);
#endif
#ifdef CONFIG_SOC_OMAP2430
static void __init of_ti_omap2430_interface_clk_setup(struct device_node *node)
{
_of_ti_interface_clk_setup(node, &clkhwops_omap2430_i2chs_wait);
}
CLK_OF_DECLARE(ti_omap2430_interface_clk, "ti,omap2430-interface-clock",
of_ti_omap2430_interface_clk_setup);
#endif
include/dt-bindings/clk/ti-dra7-atl.h 0 → 100644
浏览文件 @ dd1845af
/*
* This header provides constants for DRA7 ATL (Audio Tracking Logic)
*
* The constants defined in this header are used in dts files
*
* Copyright (C) 2013 Texas Instruments, Inc.
*
* Peter Ujfalusi <peter.ujfalusi@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef _DT_BINDINGS_CLK_DRA7_ATL_H
#define _DT_BINDINGS_CLK_DRA7_ATL_H
#define DRA7_ATL_WS_MCASP1_FSR 0
#define DRA7_ATL_WS_MCASP1_FSX 1
#define DRA7_ATL_WS_MCASP2_FSR 2
#define DRA7_ATL_WS_MCASP2_FSX 3
#define DRA7_ATL_WS_MCASP3_FSX 4
#define DRA7_ATL_WS_MCASP4_FSX 5
#define DRA7_ATL_WS_MCASP5_FSX 6
#define DRA7_ATL_WS_MCASP6_FSX 7
#define DRA7_ATL_WS_MCASP7_FSX 8
#define DRA7_ATL_WS_MCASP8_FSX 9
#define DRA7_ATL_WS_MCASP8_AHCLKX 10
#define DRA7_ATL_WS_XREF_CLK3 11
#define DRA7_ATL_WS_XREF_CLK0 12
#define DRA7_ATL_WS_XREF_CLK1 13
#define DRA7_ATL_WS_XREF_CLK2 14
#define DRA7_ATL_WS_OSC1_X1 15
#endif
include/linux/clk/ti.h
浏览文件 @ dd1845af
...@@ -41,6 +41,8 @@ ...@@ -41,6 +41,8 @@
* @idlest_reg: register containing the DPLL idle status bitfield * @idlest_reg: register containing the DPLL idle status bitfield
* @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg * @autoidle_mask: mask of the DPLL autoidle mode bitfield in @autoidle_reg
* @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg * @freqsel_mask: mask of the DPLL jitter correction bitfield in @control_reg
* @dcc_mask: mask of the DPLL DCC correction bitfield @mult_div1_reg
* @dcc_rate: rate atleast which DCC @dcc_mask must be set
* @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg * @idlest_mask: mask of the DPLL idle status bitfield in @idlest_reg
* @lpmode_mask: mask of the DPLL low-power mode bitfield in @control_reg * @lpmode_mask: mask of the DPLL low-power mode bitfield in @control_reg
* @m4xen_mask: mask of the DPLL M4X multiplier bitfield in @control_reg * @m4xen_mask: mask of the DPLL M4X multiplier bitfield in @control_reg
...@@ -86,6 +88,8 @@ struct dpll_data { ...@@ -86,6 +88,8 @@ struct dpll_data {
u32 idlest_mask; u32 idlest_mask;
u32 dco_mask; u32 dco_mask;
u32 sddiv_mask; u32 sddiv_mask;
u32 dcc_mask;
unsigned long dcc_rate;
u32 lpmode_mask; u32 lpmode_mask;
u32 m4xen_mask; u32 m4xen_mask;
u8 auto_recal_bit; u8 auto_recal_bit;
...@@ -94,7 +98,26 @@ struct dpll_data { ...@@ -94,7 +98,26 @@ struct dpll_data {
u8 flags; u8 flags;
}; };
struct clk_hw_omap_ops; struct clk_hw_omap;
/**
* struct clk_hw_omap_ops - OMAP clk ops
* @find_idlest: find idlest register information for a clock
* @find_companion: find companion clock register information for a clock,
* basically converts CM_ICLKEN* <-> CM_FCLKEN*
* @allow_idle: enables autoidle hardware functionality for a clock
* @deny_idle: prevent autoidle hardware functionality for a clock
*/
struct clk_hw_omap_ops {
void (*find_idlest)(struct clk_hw_omap *oclk,
void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
void (*find_companion)(struct clk_hw_omap *oclk,
void __iomem **other_reg,
u8 *other_bit);
void (*allow_idle)(struct clk_hw_omap *oclk);
void (*deny_idle)(struct clk_hw_omap *oclk);
};
/** /**
* struct clk_hw_omap - OMAP struct clk * struct clk_hw_omap - OMAP struct clk
...@@ -259,6 +282,12 @@ int omap2_dflt_clk_enable(struct clk_hw *hw); ...@@ -259,6 +282,12 @@ int omap2_dflt_clk_enable(struct clk_hw *hw);
void omap2_dflt_clk_disable(struct clk_hw *hw); void omap2_dflt_clk_disable(struct clk_hw *hw);
int omap2_dflt_clk_is_enabled(struct clk_hw *hw); int omap2_dflt_clk_is_enabled(struct clk_hw *hw);
void omap3_clk_lock_dpll5(void); void omap3_clk_lock_dpll5(void);
unsigned long omap2_dpllcore_recalc(struct clk_hw *hw,
unsigned long parent_rate);
int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate,
unsigned long parent_rate);
void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw);
void omap2xxx_clkt_vps_init(void);
void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index); void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index);
void ti_dt_clocks_register(struct ti_dt_clk *oclks); void ti_dt_clocks_register(struct ti_dt_clk *oclks);
...@@ -278,6 +307,8 @@ int omap5xxx_dt_clk_init(void); ...@@ -278,6 +307,8 @@ int omap5xxx_dt_clk_init(void);
int dra7xx_dt_clk_init(void); int dra7xx_dt_clk_init(void);
int am33xx_dt_clk_init(void); int am33xx_dt_clk_init(void);
int am43xx_dt_clk_init(void); int am43xx_dt_clk_init(void);
int omap2420_dt_clk_init(void);
int omap2430_dt_clk_init(void);
#ifdef CONFIG_OF #ifdef CONFIG_OF
void of_ti_clk_allow_autoidle_all(void); void of_ti_clk_allow_autoidle_all(void);
...@@ -287,6 +318,8 @@ static inline void of_ti_clk_allow_autoidle_all(void) { } ...@@ -287,6 +318,8 @@ static inline void of_ti_clk_allow_autoidle_all(void) { }
static inline void of_ti_clk_deny_autoidle_all(void) { } static inline void of_ti_clk_deny_autoidle_all(void) { }
#endif #endif
extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait;
extern const struct clk_hw_omap_ops clkhwops_omap3_dpll; extern const struct clk_hw_omap_ops clkhwops_omap3_dpll;
extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx; extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx;
extern const struct clk_hw_omap_ops clkhwops_wait; extern const struct clk_hw_omap_ops clkhwops_wait;
......
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